Dummy PR to check instrument-coverage test failures in CI #111116

Zalathar · 2023-05-03T01:16:10Z

https://rust-lang.zulipchat.com/#narrow/stream/182449-t-compiler.2Fhelp/topic/Do.20.60needs-profiler-support.60.20tests.20not.20run.20in.20CI.3F

Sorry for the noise; I was having some trouble getting the CI jobs to run at all, and I'm not sure how to politely avoid the auto-notifications.

rustbot · 2023-05-03T01:16:16Z

r? @Mark-Simulacrum

(rustbot has picked a reviewer for you, use r? to override)

rustbot · 2023-05-03T02:43:55Z

Some changes occurred to MIR optimizations

cc @rust-lang/wg-mir-opt

Zalathar · 2023-05-03T03:55:03Z

OK, this confirms that x86_64-gnu will fail if one of the snapshots is definitely busted.

Now I'll try backing out the synthetic failure in test_harness, to see if the async test also fails as expected.

Zalathar · 2023-05-03T05:01:42Z

OK, that test run succeeded, despite containing a tests/run-make/coverage-reports/expected_show_coverage.async.txt that ought to be wrong.

Successful job link: https://github.com/rust-lang/rust/actions/runs/4868140937/jobs/8681353114

Now I'll try specifically modifying that file.

KittyBorgX · 2023-05-03T05:06:41Z

r? @ghost

rustbot · 2023-05-03T05:06:43Z

Failed to set assignee to ghost: invalid assignee

Note: Only org members, users with write permissions, or people who have commented on the PR may be assigned.

Dylan-DPC · 2023-05-03T05:08:08Z

r? @ghost

rustbot · 2023-05-03T05:08:10Z

Failed to set assignee to ghost: invalid assignee

Note: Only org members, users with write permissions, or people who have commented on the PR may be assigned.

Zalathar · 2023-05-03T06:15:35Z

My most recent change deliberately added another error to expected_show_coverage.async.txt, alongside the existing errors.

The corresponding test run inappropriately succeeded: https://github.com/rust-lang/rust/actions/runs/4868472221/jobs/8681992254

Zalathar · 2023-05-03T06:27:54Z

Now I'll try bumping async.rs, to see if that causes the test run to spot an error.

Zalathar · 2023-05-03T08:53:31Z

Even modifying async.rs did not cause the CI build to fail.

Successful job link: https://github.com/rust-lang/rust/actions/runs/4868994006/jobs/8683000830

Next I'm going to take the extreme measure of replacing expected_show_coverage.async.txt with clearly-incorrect text. When I did this for expected_show_coverage.test_coverage.txt, that did produce a CI failure as intended, so this will check whether async.rs is somehow being treated differently.

Zalathar · 2023-05-03T10:00:37Z

Based on this evidence, I think the --ignore-matching-lines regexes are still matching every line on Linux, even though they work fine on my Mac.

Zalathar · 2023-05-03T10:33:29Z

Based on my new hypothesis, I've modified tests/run-make/coverage-reports/Makefile to escape literal pipe characters as [|] instead of \|.

Hopefully this should eliminate any subtle differences between GNU diff and Apple diff.

Zalathar · 2023-05-03T11:52:01Z

It seems clear that the person responsible for this headache is ... me, via #110942.

There seems to be some subtle difference in how GNU diff and Apple diff handle --ignore-matching-lines, so when I made things work on Mac, it ended up that Linux either wasn't fixed or became newly broken.

To check whether things were working previously, I'll try removing those inserted \ characters.

rust-log-analyzer · 2023-05-03T12:46:45Z

The job x86_64-gnu failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

---- [run-make] tests/run-make/coverage-reports stdout ----

error: make failed
status: exit status: 2
command: cd "/checkout/tests/run-make/coverage-reports" && AR="ar" CC="cc -ffunction-sections -fdata-sections -fPIC -m64" CXX="c++ -ffunction-sections -fdata-sections -fPIC -m64" HOST_RPATH_DIR="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib" LD_LIB_PATH_ENVVAR="LD_LIBRARY_PATH" LLVM_BIN_DIR="/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin" LLVM_COMPONENTS="aarch64 aarch64asmparser aarch64codegen aarch64desc aarch64disassembler aarch64info aarch64utils aggressiveinstcombine all all-targets analysis arm armasmparser armcodegen armdesc armdisassembler arminfo armutils asmparser asmprinter avr avrasmparser avrcodegen avrdesc avrdisassembler avrinfo binaryformat bitreader bitstreamreader bitwriter bpf bpfasmparser bpfcodegen bpfdesc bpfdisassembler bpfinfo cfguard codegen core coroutines coverage debuginfocodeview debuginfodwarf debuginfogsym debuginfologicalview debuginfomsf debuginfopdb demangle dlltooldriver dwarflinker dwarflinkerparallel dwp engine executionengine extensions filecheck frontendhlsl frontendopenacc frontendopenmp fuzzercli fuzzmutate globalisel hexagon hexagonasmparser hexagoncodegen hexagondesc hexagondisassembler hexagoninfo instcombine instrumentation interfacestub interpreter ipo irprinter irreader jitlink libdriver lineeditor linker loongarch loongarchasmparser loongarchcodegen loongarchdesc loongarchdisassembler loongarchinfo lto m68k m68kasmparser m68kcodegen m68kdesc m68kdisassembler m68kinfo mc mca mcdisassembler mcjit mcparser mips mipsasmparser mipscodegen mipsdesc mipsdisassembler mipsinfo mirparser msp430 msp430asmparser msp430codegen msp430desc msp430disassembler msp430info native nativecodegen nvptx nvptxcodegen nvptxdesc nvptxinfo objcarcopts objcopy object objectyaml option orcjit orcshared orctargetprocess passes powerpc powerpcasmparser powerpccodegen powerpcdesc powerpcdisassembler powerpcinfo profiledata remarks riscv riscvasmparser riscvcodegen riscvdesc riscvdisassembler riscvinfo riscvtargetmca runtimedyld scalaropts selectiondag sparc sparcasmparser sparccodegen sparcdesc sparcdisassembler sparcinfo support symbolize systemz systemzasmparser systemzcodegen systemzdesc systemzdisassembler systemzinfo tablegen target targetparser textapi transformutils vectorize webassembly webassemblyasmparser webassemblycodegen webassemblydesc webassemblydisassembler webassemblyinfo webassemblyutils windowsdriver windowsmanifest x86 x86asmparser x86codegen x86desc x86disassembler x86info x86targetmca xray" LLVM_FILECHECK="/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin/FileCheck" PYTHON="/usr/bin/python3" RUSTC="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" RUSTDOC="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc" RUST_BUILD_STAGE="stage2-x86_64-unknown-linux-gnu" RUST_DEMANGLER="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2-tools-bin/rust-demangler" S="/checkout" TARGET="x86_64-unknown-linux-gnu" TARGET_RPATH_DIR="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib" TMPDIR="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" "make"
# Compile the test library with coverage instrumentation
# Compile the test library with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/lib/used_inline_crate.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/lib/used_inline_crate.rs ) \
  --crate-type rlib -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Compile the test library with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/lib/unused_mod_helper.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/lib/unused_mod_helper.rs ) \
  --crate-type rlib -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Compile the test library with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/lib/doctest_crate.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/lib/doctest_crate.rs ) \
  --crate-type rlib -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Compile the test library with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/lib/inline_always_with_dead_code.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/lib/inline_always_with_dead_code.rs ) \
  --crate-type rlib -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Compile the test library with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/lib/used_crate.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/lib/used_crate.rs ) \
  --crate-type rlib -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Compile the test program with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/dead_code.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/dead_code.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Run it in order to generate some profiling data,
# with `LLVM_PROFILE_FILE=<profdata_file>` environment variable set to
# output the coverage stats for this run.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/dead_code.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/dead_code || \
  ( \
   status=$?; \
   grep -q "^\/\/ expect-exit-status-$status" ../coverage/dead_code.rs || \
   ( >&2 echo "program exited with an unexpected exit status: $status"; \
   ) \
  )
  )
# Run it through rustdoc as well to cover doctests.
# `%p` is the pid, and `%m` the binary signature. We suspect that the pid alone
# might result in overwritten files and failed tests, as rustdoc spawns each
# doctest as its own process, so make sure the filename is as unique as possible.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/dead_code-%p-%m.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc' -L /checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib --crate-name workaround_for_79771 --test ../coverage/dead_code.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/dead_code.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage \
  -Z unstable-options --persist-doctests=/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-dead_code
running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s


# Postprocess the profiling data so it can be used by the llvm-cov tool
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-profdata merge --sparse \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/dead_code*.profraw \
  -o "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/dead_code.profdata
# Generate a coverage report using `llvm-cov show`.
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-cov show \
  --debug \
  --ignore-filename-regex='(uses_crate.rs|uses_inline_crate.rs|unused_mod.rs)' \
  --compilation-dir=. \
  --Xdemangler="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2-tools-bin/rust-demangler" \
  --show-line-counts-or-regions \
  --instr-profile="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/dead_code.profdata \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/dead_code \
  $( for file in /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-dead_code/*/rust_out*; do [ -x "$file" ] && printf "%s %s " -object $file; done ) \
 2> "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.dead_code.txt \
 | "/usr/bin/python3" ../coverage-reports/normalize_paths.py \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.dead_code.txt || \
( status=$? ; \
 >&2 cat "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.dead_code.txt ; \
 exit $status \
)
# The first line (beginning with "Args:" contains hard-coded, build-specific
# file paths. Strip that line and keep the remaining lines with counter debug
# data.
tail -n +2 "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.dead_code.txt \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage_counters.dead_code.txt
# Compare the show coverage output (`--bless` refreshes `typical` files).
#
# FIXME(richkadel): None of the Rust test source samples have the
# `// ignore-llvm-cov-show-diffs` anymore. This directive exists to work around a limitation
# with `llvm-cov show`. When reporting coverage for multiple instantiations of a generic function,
# with different type substitutions, `llvm-cov show` prints these in a non-deterministic order,
# breaking the `diff` comparison.
#
# A partial workaround is implemented below, with `diff --ignore-matching-lines=RE`
# to ignore each line prefixing each generic instantiation coverage code region.
#
# This workaround only works if the coverage counts are identical across all reported
# instantiations. If there is no way to ensure this, you may need to apply the
# `// ignore-llvm-cov-show-diffs` directive, and check for differences using the
# `.json` files to validate that results have not changed. (Until then, the JSON
# files are redundant, so there is no need to generate `expected_*.json` files or
# compare actual JSON results.)
diff -u --strip-trailing-cr --ignore-matching-lines='^  | .*::<.*>.*:$' --ignore-matching-lines='^  | <.*>::.*:$' \
 expected_show_coverage.dead_code.txt "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.dead_code.txt || \
 ( grep -q '^\/\/ ignore-llvm-cov-show-diffs' ../coverage/dead_code.rs && \
  >&2 echo 'diff failed, but suppressed with `// ignore-llvm-cov-show-diffs` in ../coverage/dead_code.rs' \
 ) || \
 ( >&2 echo 'diff failed, and not suppressed without `// ignore-llvm-cov-show-diffs` in ../coverage/dead_code.rs'; \
 )
# Compile the test program with coverage instrumentation
# Compile the test program with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/uses_inline_crate.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/uses_inline_crate.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Run it in order to generate some profiling data,
# with `LLVM_PROFILE_FILE=<profdata_file>` environment variable set to
# output the coverage stats for this run.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/uses_inline_crate.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/uses_inline_crate || \
  ( \
   status=$?; \
   grep -q "^\/\/ expect-exit-status-$status" ../coverage/uses_inline_crate.rs || \
   ( >&2 echo "program exited with an unexpected exit status: $status"; \
   ) \
  )
used_from_bin_crate_and_lib_crate_generic_function with "used from library used_crate.rs"
used_with_same_type_from_bin_crate_and_lib_crate_generic_function with "used from library used_crate.rs"
used_with_same_type_from_bin_crate_and_lib_crate_generic_function with "used from library used_crate.rs"
used_only_from_this_lib_crate_generic_function with [5, 6, 7, 8]
used_only_from_this_lib_crate_generic_function with "used ONLY from library used_crate.rs"
used_from_bin_crate_and_lib_crate_generic_function with "used from library used_crate.rs"
used_with_same_type_from_bin_crate_and_lib_crate_generic_function with "used from library used_crate.rs"
used_only_from_this_lib_crate_generic_function with [5, 6, 7, 8]
used_only_from_this_lib_crate_generic_function with "used ONLY from library used_crate.rs"
used_only_from_bin_crate_generic_function with [1, 2, 3, 4]
used_only_from_bin_crate_generic_function with "used from bin uses_crate.rs"
used_from_bin_crate_and_lib_crate_generic_function with [1, 2, 3, 4]
used_with_same_type_from_bin_crate_and_lib_crate_generic_function with "interesting?"
# Run it through rustdoc as well to cover doctests.
# `%p` is the pid, and `%m` the binary signature. We suspect that the pid alone
# might result in overwritten files and failed tests, as rustdoc spawns each
# doctest as its own process, so make sure the filename is as unique as possible.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/uses_inline_crate-%p-%m.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc' -L /checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib --crate-name workaround_for_79771 --test ../coverage/uses_inline_crate.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/uses_inline_crate.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage \
  -Z unstable-options --persist-doctests=/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-uses_inline_crate
running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s


# Postprocess the profiling data so it can be used by the llvm-cov tool
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-profdata merge --sparse \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/uses_inline_crate*.profraw \
  -o "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/uses_inline_crate.profdata
# Generate a coverage report using `llvm-cov show`.
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-cov show \
  --debug \
  --ignore-filename-regex='(uses_crate.rs|uses_inline_crate.rs|unused_mod.rs)' \
  --compilation-dir=. \
  --Xdemangler="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2-tools-bin/rust-demangler" \
  --show-line-counts-or-regions \
  --instr-profile="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/uses_inline_crate.profdata \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/uses_inline_crate \
  $( for file in /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-uses_inline_crate/*/rust_out*; do [ -x "$file" ] && printf "%s %s " -object $file; done ) \
 2> "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.uses_inline_crate.txt \
 | "/usr/bin/python3" ../coverage-reports/normalize_paths.py \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.uses_inline_crate.txt || \
( status=$? ; \
 >&2 cat "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.uses_inline_crate.txt ; \
 exit $status \
)
# The first line (beginning with "Args:" contains hard-coded, build-specific
# file paths. Strip that line and keep the remaining lines with counter debug
# data.
tail -n +2 "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.uses_inline_crate.txt \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage_counters.uses_inline_crate.txt
# Compare the show coverage output (`--bless` refreshes `typical` files).
#
# FIXME(richkadel): None of the Rust test source samples have the
# `// ignore-llvm-cov-show-diffs` anymore. This directive exists to work around a limitation
# with `llvm-cov show`. When reporting coverage for multiple instantiations of a generic function,
# with different type substitutions, `llvm-cov show` prints these in a non-deterministic order,
# breaking the `diff` comparison.
#
# A partial workaround is implemented below, with `diff --ignore-matching-lines=RE`
# to ignore each line prefixing each generic instantiation coverage code region.
#
# This workaround only works if the coverage counts are identical across all reported
# instantiations. If there is no way to ensure this, you may need to apply the
# `// ignore-llvm-cov-show-diffs` directive, and check for differences using the
# `.json` files to validate that results have not changed. (Until then, the JSON
# files are redundant, so there is no need to generate `expected_*.json` files or
# compare actual JSON results.)
diff -u --strip-trailing-cr --ignore-matching-lines='^  | .*::<.*>.*:$' --ignore-matching-lines='^  | <.*>::.*:$' \
 expected_show_coverage.uses_inline_crate.txt "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.uses_inline_crate.txt || \
 ( grep -q '^\/\/ ignore-llvm-cov-show-diffs' ../coverage/uses_inline_crate.rs && \
  >&2 echo 'diff failed, but suppressed with `// ignore-llvm-cov-show-diffs` in ../coverage/uses_inline_crate.rs' \
 ) || \
 ( >&2 echo 'diff failed, and not suppressed without `// ignore-llvm-cov-show-diffs` in ../coverage/uses_inline_crate.rs'; \
 )
 )
--- expected_show_coverage.uses_inline_crate.txt 2023-05-03 11:53:19.265546387 +0000
+++ /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/actual_show_coverage.uses_inline_crate.txt 2023-05-03 12:45:38.997008541 +0000
@@ -52,8 +52,6 @@
   |   40|      1|    println!("used_only_from_bin_crate_generic_function with {:?}", arg);
   |   41|      1|}
   ------------------
-  | Unexecuted instantiation: used_inline_crate::used_only_from_bin_crate_generic_function::<_>
-  ------------------
    42|       |// Expect for above function: `Unexecuted instantiation` (see notes in `used_crate.rs`)
    43|       |
    43|       |
    44|       |#[inline(always)]
@@ -105,27 +103,27 @@
    58|       |
    58|       |
    59|       |#[inline(always)]
-   60|      0|pub fn unused_generic_function<T: Debug>(arg: T) {
-   61|      0|    println!("unused_generic_function with {:?}", arg);
-   62|      0|}
+   60|       |pub fn unused_generic_function<T: Debug>(arg: T) {
+   61|       |    println!("unused_generic_function with {:?}", arg);
+   62|       |}
    63|       |
    64|       |#[inline(always)]
-   65|      0|pub fn unused_function() {
-   66|      0|    let is_true = std::env::args().len() == 1;
-   67|      0|    let mut countdown = 2;
-   68|      0|    if !is_true {
-   69|      0|        countdown = 20;
-   71|      0|}
+   65|       |pub fn unused_function() {
+   66|       |    let is_true = std::env::args().len() == 1;
+   67|       |    let mut countdown = 2;
+   67|       |    let mut countdown = 2;
+   68|       |    if !is_true {
+   69|       |        countdown = 20;
+   70|       |    }
+   71|       |}
    72|       |
    73|       |#[inline(always)]
-   74|      0|fn unused_private_function() {
-   75|      0|    let is_true = std::env::args().len() == 1;
-   76|      0|    let mut countdown = 2;
-   77|      0|    if !is_true {
-   78|      0|        countdown = 20;
-   80|      0|}
+   74|       |fn unused_private_function() {
+   75|       |    let is_true = std::env::args().len() == 1;
+   76|       |    let mut countdown = 2;
+   76|       |    let mut countdown = 2;
+   77|       |    if !is_true {
+   78|       |        countdown = 20;
+   79|       |    }
+   80|       |}
    81|       |
    82|      2|fn use_this_lib_crate() {
    83|      2|    used_from_bin_crate_and_lib_crate_generic_function("used from library used_crate.rs");
# Compile the test program with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/if.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/if.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Run it in order to generate some profiling data,
# with `LLVM_PROFILE_FILE=<profdata_file>` environment variable set to
# output the coverage stats for this run.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/if.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/if || \
  ( \
   status=$?; \
   grep -q "^\/\/ expect-exit-status-$status" ../coverage/if.rs || \
   ( >&2 echo "program exited with an unexpected exit status: $status"; \
   ) \
  )
  )
# Run it through rustdoc as well to cover doctests.
# `%p` is the pid, and `%m` the binary signature. We suspect that the pid alone
# might result in overwritten files and failed tests, as rustdoc spawns each
# doctest as its own process, so make sure the filename is as unique as possible.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/if-%p-%m.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc' -L /checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib --crate-name workaround_for_79771 --test ../coverage/if.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/if.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage \
  -Z unstable-options --persist-doctests=/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-if
running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s


# Postprocess the profiling data so it can be used by the llvm-cov tool
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-profdata merge --sparse \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/if*.profraw \
  -o "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/if.profdata
# Generate a coverage report using `llvm-cov show`.
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-cov show \
  --debug \
  --ignore-filename-regex='(uses_crate.rs|uses_inline_crate.rs|unused_mod.rs)' \
  --compilation-dir=. \
  --Xdemangler="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2-tools-bin/rust-demangler" \
  --show-line-counts-or-regions \
  --instr-profile="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/if.profdata \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/if \
  $( for file in /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-if/*/rust_out*; do [ -x "$file" ] && printf "%s %s " -object $file; done ) \
 2> "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.if.txt \
 | "/usr/bin/python3" ../coverage-reports/normalize_paths.py \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.if.txt || \
( status=$? ; \
 >&2 cat "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.if.txt ; \
 exit $status \
)
# The first line (beginning with "Args:" contains hard-coded, build-specific
# file paths. Strip that line and keep the remaining lines with counter debug
# data.
tail -n +2 "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.if.txt \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage_counters.if.txt
# Compare the show coverage output (`--bless` refreshes `typical` files).
#
# FIXME(richkadel): None of the Rust test source samples have the
# `// ignore-llvm-cov-show-diffs` anymore. This directive exists to work around a limitation
# with `llvm-cov show`. When reporting coverage for multiple instantiations of a generic function,
# with different type substitutions, `llvm-cov show` prints these in a non-deterministic order,
# breaking the `diff` comparison.
#
# A partial workaround is implemented below, with `diff --ignore-matching-lines=RE`
# to ignore each line prefixing each generic instantiation coverage code region.
#
# This workaround only works if the coverage counts are identical across all reported
# instantiations. If there is no way to ensure this, you may need to apply the
# `// ignore-llvm-cov-show-diffs` directive, and check for differences using the
# `.json` files to validate that results have not changed. (Until then, the JSON
# files are redundant, so there is no need to generate `expected_*.json` files or
# compare actual JSON results.)
diff -u --strip-trailing-cr --ignore-matching-lines='^  | .*::<.*>.*:$' --ignore-matching-lines='^  | <.*>::.*:$' \
 expected_show_coverage.if.txt "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.if.txt || \
 ( grep -q '^\/\/ ignore-llvm-cov-show-diffs' ../coverage/if.rs && \
  >&2 echo 'diff failed, but suppressed with `// ignore-llvm-cov-show-diffs` in ../coverage/if.rs' \
 ) || \
 ( >&2 echo 'diff failed, and not suppressed without `// ignore-llvm-cov-show-diffs` in ../coverage/if.rs'; \
 )
# Compile the test program with coverage instrumentation
# Compile the test program with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/yield.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/yield.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Run it in order to generate some profiling data,
# with `LLVM_PROFILE_FILE=<profdata_file>` environment variable set to
# output the coverage stats for this run.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/yield.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/yield || \
  ( \
   status=$?; \
   grep -q "^\/\/ expect-exit-status-$status" ../coverage/yield.rs || \
   ( >&2 echo "program exited with an unexpected exit status: $status"; \
   ) \
  )
  )
# Run it through rustdoc as well to cover doctests.
# `%p` is the pid, and `%m` the binary signature. We suspect that the pid alone
# might result in overwritten files and failed tests, as rustdoc spawns each
# doctest as its own process, so make sure the filename is as unique as possible.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/yield-%p-%m.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc' -L /checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib --crate-name workaround_for_79771 --test ../coverage/yield.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/yield.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage \
  -Z unstable-options --persist-doctests=/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-yield
running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s


# Postprocess the profiling data so it can be used by the llvm-cov tool
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-profdata merge --sparse \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/yield*.profraw \
  -o "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/yield.profdata
# Generate a coverage report using `llvm-cov show`.
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-cov show \
  --debug \
  --ignore-filename-regex='(uses_crate.rs|uses_inline_crate.rs|unused_mod.rs)' \
  --compilation-dir=. \
  --Xdemangler="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2-tools-bin/rust-demangler" \
  --show-line-counts-or-regions \
  --instr-profile="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/yield.profdata \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/yield \
  $( for file in /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-yield/*/rust_out*; do [ -x "$file" ] && printf "%s %s " -object $file; done ) \
 2> "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.yield.txt \
 | "/usr/bin/python3" ../coverage-reports/normalize_paths.py \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.yield.txt || \
( status=$? ; \
 >&2 cat "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.yield.txt ; \
 exit $status \
)
# The first line (beginning with "Args:" contains hard-coded, build-specific
# file paths. Strip that line and keep the remaining lines with counter debug
# data.
tail -n +2 "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.yield.txt \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage_counters.yield.txt
# Compare the show coverage output (`--bless` refreshes `typical` files).
#
# FIXME(richkadel): None of the Rust test source samples have the
# `// ignore-llvm-cov-show-diffs` anymore. This directive exists to work around a limitation
# with `llvm-cov show`. When reporting coverage for multiple instantiations of a generic function,
# with different type substitutions, `llvm-cov show` prints these in a non-deterministic order,
# breaking the `diff` comparison.
#
# A partial workaround is implemented below, with `diff --ignore-matching-lines=RE`
# to ignore each line prefixing each generic instantiation coverage code region.
#
# This workaround only works if the coverage counts are identical across all reported
# instantiations. If there is no way to ensure this, you may need to apply the
# `// ignore-llvm-cov-show-diffs` directive, and check for differences using the
# `.json` files to validate that results have not changed. (Until then, the JSON
# files are redundant, so there is no need to generate `expected_*.json` files or
# compare actual JSON results.)
diff -u --strip-trailing-cr --ignore-matching-lines='^  | .*::<.*>.*:$' --ignore-matching-lines='^  | <.*>::.*:$' \
 expected_show_coverage.yield.txt "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.yield.txt || \
 ( grep -q '^\/\/ ignore-llvm-cov-show-diffs' ../coverage/yield.rs && \
  >&2 echo 'diff failed, but suppressed with `// ignore-llvm-cov-show-diffs` in ../coverage/yield.rs' \
 ) || \
 ( >&2 echo 'diff failed, and not suppressed without `// ignore-llvm-cov-show-diffs` in ../coverage/yield.rs'; \
 )
# Compile the test program with coverage instrumentation
# Compile the test program with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/doctest.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/doctest.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Run it in order to generate some profiling data,
# with `LLVM_PROFILE_FILE=<profdata_file>` environment variable set to
# output the coverage stats for this run.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/doctest.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/doctest || \
  ( \
   status=$?; \
   grep -q "^\/\/ expect-exit-status-$status" ../coverage/doctest.rs || \
   ( >&2 echo "program exited with an unexpected exit status: $status"; \
   ) \
  )
  )
# Run it through rustdoc as well to cover doctests.
# `%p` is the pid, and `%m` the binary signature. We suspect that the pid alone
# might result in overwritten files and failed tests, as rustdoc spawns each
# doctest as its own process, so make sure the filename is as unique as possible.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/doctest-%p-%m.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc' -L /checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib --crate-name workaround_for_79771 --test ../coverage/doctest.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/doctest.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage \
  -Z unstable-options --persist-doctests=/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-doctest
running 5 tests
test ../coverage/doctest.rs - (line 44) ... ok
test ../coverage/doctest.rs - (line 5) ... ok
test ../coverage/doctest.rs - (line 16) ... ok
test ../coverage/doctest.rs - (line 16) ... ok
test ../coverage/doctest.rs - main (line 68) ... ok
test ../coverage/doctest.rs - (line 22) ... ok

test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.65s

# Postprocess the profiling data so it can be used by the llvm-cov tool
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-profdata merge --sparse \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/doctest*.profraw \
  -o "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/doctest.profdata
# Generate a coverage report using `llvm-cov show`.
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-cov show \
  --debug \
  --ignore-filename-regex='(uses_crate.rs|uses_inline_crate.rs|unused_mod.rs)' \
  --compilation-dir=. \
  --Xdemangler="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2-tools-bin/rust-demangler" \
  --show-line-counts-or-regions \
  --instr-profile="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/doctest.profdata \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/doctest \
  $( for file in /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-doctest/*/rust_out*; do [ -x "$file" ] && printf "%s %s " -object $file; done ) \
 2> "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.doctest.txt \
 | "/usr/bin/python3" ../coverage-reports/normalize_paths.py \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.doctest.txt || \
( status=$? ; \
 >&2 cat "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.doctest.txt ; \
 exit $status \
)
# The first line (beginning with "Args:" contains hard-coded, build-specific
# file paths. Strip that line and keep the remaining lines with counter debug
# data.
tail -n +2 "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.doctest.txt \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage_counters.doctest.txt
# Compare the show coverage output (`--bless` refreshes `typical` files).
#
# FIXME(richkadel): None of the Rust test source samples have the
# `// ignore-llvm-cov-show-diffs` anymore. This directive exists to work around a limitation
# with `llvm-cov show`. When reporting coverage for multiple instantiations of a generic function,
# with different type substitutions, `llvm-cov show` prints these in a non-deterministic order,
# breaking the `diff` comparison.
#
# A partial workaround is implemented below, with `diff --ignore-matching-lines=RE`
# to ignore each line prefixing each generic instantiation coverage code region.
#
# This workaround only works if the coverage counts are identical across all reported
# instantiations. If there is no way to ensure this, you may need to apply the
# `// ignore-llvm-cov-show-diffs` directive, and check for differences using the
# `.json` files to validate that results have not changed. (Until then, the JSON
# files are redundant, so there is no need to generate `expected_*.json` files or
# compare actual JSON results.)
diff -u --strip-trailing-cr --ignore-matching-lines='^  | .*::<.*>.*:$' --ignore-matching-lines='^  | <.*>::.*:$' \
 expected_show_coverage.doctest.txt "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.doctest.txt || \
 ( grep -q '^\/\/ ignore-llvm-cov-show-diffs' ../coverage/doctest.rs && \
---
called and covered
called but not covered
called and covered
called and covered
# Run it through rustdoc as well to cover doctests.
# `%p` is the pid, and `%m` the binary signature. We suspect that the pid alone
# might result in overwritten files and failed tests, as rustdoc spawns each
# doctest as its own process, so make sure the filename is as unique as possible.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/no_cov_crate-%p-%m.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc' -L /checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib --crate-name workaround_for_79771 --test ../coverage/no_cov_crate.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/no_cov_crate.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage \
  -Z unstable-options --persist-doctests=/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-no_cov_crate
running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s


# Postprocess the profiling data so it can be used by the llvm-cov tool
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-profdata merge --sparse \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/no_cov_crate*.profraw \
  -o "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/no_cov_crate.profdata
# Generate a coverage report using `llvm-cov show`.
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-cov show \
  --debug \
  --ignore-filename-regex='(uses_crate.rs|uses_inline_crate.rs|unused_mod.rs)' \
  --compilation-dir=. \
  --Xdemangler="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2-tools-bin/rust-demangler" \
  --show-line-counts-or-regions \
  --instr-profile="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/no_cov_crate.profdata \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/no_cov_crate \
  $( for file in /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-no_cov_crate/*/rust_out*; do [ -x "$file" ] && printf "%s %s " -object $file; done ) \
 2> "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.no_cov_crate.txt \
 | "/usr/bin/python3" ../coverage-reports/normalize_paths.py \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.no_cov_crate.txt || \
( status=$? ; \
 >&2 cat "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.no_cov_crate.txt ; \
 exit $status \
)
# The first line (beginning with "Args:" contains hard-coded, build-specific
# file paths. Strip that line and keep the remaining lines with counter debug
# data.
tail -n +2 "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.no_cov_crate.txt \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage_counters.no_cov_crate.txt
# Compare the show coverage output (`--bless` refreshes `typical` files).
#
# FIXME(richkadel): None of the Rust test source samples have the
# `// ignore-llvm-cov-show-diffs` anymore. This directive exists to work around a limitation
# with `llvm-cov show`. When reporting coverage for multiple instantiations of a generic function,
# with different type substitutions, `llvm-cov show` prints these in a non-deterministic order,
# breaking the `diff` comparison.
#
# A partial workaround is implemented below, with `diff --ignore-matching-lines=RE`
# to ignore each line prefixing each generic instantiation coverage code region.
#
# This workaround only works if the coverage counts are identical across all reported
# instantiations. If there is no way to ensure this, you may need to apply the
# `// ignore-llvm-cov-show-diffs` directive, and check for differences using the
# `.json` files to validate that results have not changed. (Until then, the JSON
# files are redundant, so there is no need to generate `expected_*.json` files or
# compare actual JSON results.)
diff -u --strip-trailing-cr --ignore-matching-lines='^  | .*::<.*>.*:$' --ignore-matching-lines='^  | <.*>::.*:$' \
 expected_show_coverage.no_cov_crate.txt "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.no_cov_crate.txt || \
 ( grep -q '^\/\/ ignore-llvm-cov-show-diffs' ../coverage/no_cov_crate.rs && \
  >&2 echo 'diff failed, but suppressed with `// ignore-llvm-cov-show-diffs` in ../coverage/no_cov_crate.rs' \
 ) || \
 ( >&2 echo 'diff failed, and not suppressed without `// ignore-llvm-cov-show-diffs` in ../coverage/no_cov_crate.rs'; \
 )
# Compile the test program with coverage instrumentation
# Compile the test program with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/test_harness.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/test_harness.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Run it in order to generate some profiling data,
# with `LLVM_PROFILE_FILE=<profdata_file>` environment variable set to
# output the coverage stats for this run.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/test_harness.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/test_harness || \
  ( \
   status=$?; \
   grep -q "^\/\/ expect-exit-status-$status" ../coverage/test_harness.rs || \
   ( >&2 echo "program exited with an unexpected exit status: $status"; \
   ) \
  )

running 1 test
running 1 test
test my_test ... ok

test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

# Run it through rustdoc as well to cover doctests.
# `%p` is the pid, and `%m` the binary signature. We suspect that the pid alone
# might result in overwritten files and failed tests, as rustdoc spawns each
# doctest as its own process, so make sure the filename is as unique as possible.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/test_harness-%p-%m.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc' -L /checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib --crate-name workaround_for_79771 --test ../coverage/test_harness.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/test_harness.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage \
  -Z unstable-options --persist-doctests=/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-test_harness
running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s


# Postprocess the profiling data so it can be used by the llvm-cov tool
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-profdata merge --sparse \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/test_harness*.profraw \
  -o "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/test_harness.profdata
# Generate a coverage report using `llvm-cov show`.
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-cov show \
  --debug \
  --ignore-filename-regex='(uses_crate.rs|uses_inline_crate.rs|unused_mod.rs)' \
  --compilation-dir=. \
  --Xdemangler="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2-tools-bin/rust-demangler" \
  --show-line-counts-or-regions \
  --instr-profile="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/test_harness.profdata \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/test_harness \
  $( for file in /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-test_harness/*/rust_out*; do [ -x "$file" ] && printf "%s %s " -object $file; done ) \
 2> "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.test_harness.txt \
 | "/usr/bin/python3" ../coverage-reports/normalize_paths.py \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.test_harness.txt || \
( status=$? ; \
 >&2 cat "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.test_harness.txt ; \
 exit $status \
)
# The first line (beginning with "Args:" contains hard-coded, build-specific
# file paths. Strip that line and keep the remaining lines with counter debug
# data.
tail -n +2 "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.test_harness.txt \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage_counters.test_harness.txt
# Compare the show coverage output (`--bless` refreshes `typical` files).
#
# FIXME(richkadel): None of the Rust test source samples have the
# `// ignore-llvm-cov-show-diffs` anymore. This directive exists to work around a limitation
# with `llvm-cov show`. When reporting coverage for multiple instantiations of a generic function,
# with different type substitutions, `llvm-cov show` prints these in a non-deterministic order,
# breaking the `diff` comparison.
#
# A partial workaround is implemented below, with `diff --ignore-matching-lines=RE`
# to ignore each line prefixing each generic instantiation coverage code region.
#
# This workaround only works if the coverage counts are identical across all reported
# instantiations. If there is no way to ensure this, you may need to apply the
# `// ignore-llvm-cov-show-diffs` directive, and check for differences using the
# `.json` files to validate that results have not changed. (Until then, the JSON
# files are redundant, so there is no need to generate `expected_*.json` files or
# compare actual JSON results.)
diff -u --strip-trailing-cr --ignore-matching-lines='^  | .*::<.*>.*:$' --ignore-matching-lines='^  | <.*>::.*:$' \
 expected_show_coverage.test_harness.txt "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.test_harness.txt || \
 ( grep -q '^\/\/ ignore-llvm-cov-show-diffs' ../coverage/test_harness.rs && \
  >&2 echo 'diff failed, but suppressed with `// ignore-llvm-cov-show-diffs` in ../coverage/test_harness.rs' \
 ) || \
 ( >&2 echo 'diff failed, and not suppressed without `// ignore-llvm-cov-show-diffs` in ../coverage/test_harness.rs'; \
 )
# Compile the test program with coverage instrumentation
# Compile the test program with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/issue-93054.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/issue-93054.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Run it in order to generate some profiling data,
# with `LLVM_PROFILE_FILE=<profdata_file>` environment variable set to
# output the coverage stats for this run.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/issue-93054.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/issue-93054 || \
  ( \
   status=$?; \
   grep -q "^\/\/ expect-exit-status-$status" ../coverage/issue-93054.rs || \
   ( >&2 echo "program exited with an unexpected exit status: $status"; \
   ) \
  )
  )
# Run it through rustdoc as well to cover doctests.
# `%p` is the pid, and `%m` the binary signature. We suspect that the pid alone
# might result in overwritten files and failed tests, as rustdoc spawns each
# doctest as its own process, so make sure the filename is as unique as possible.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/issue-93054-%p-%m.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc' -L /checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib --crate-name workaround_for_79771 --test ../coverage/issue-93054.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/issue-93054.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage \
  -Z unstable-options --persist-doctests=/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-issue-93054
running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s


# Postprocess the profiling data so it can be used by the llvm-cov tool
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-profdata merge --sparse \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/issue-93054*.profraw \
  -o "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/issue-93054.profdata
# Generate a coverage report using `llvm-cov show`.
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-cov show \
  --debug \
  --ignore-filename-regex='(uses_crate.rs|uses_inline_crate.rs|unused_mod.rs)' \
  --compilation-dir=. \
  --Xdemangler="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2-tools-bin/rust-demangler" \
  --show-line-counts-or-regions \
  --instr-profile="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/issue-93054.profdata \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/issue-93054 \
  $( for file in /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-issue-93054/*/rust_out*; do [ -x "$file" ] && printf "%s %s " -object $file; done ) \
 2> "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.issue-93054.txt \
 | "/usr/bin/python3" ../coverage-reports/normalize_paths.py \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.issue-93054.txt || \
( status=$? ; \
 >&2 cat "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.issue-93054.txt ; \
 exit $status \
)
# The first line (beginning with "Args:" contains hard-coded, build-specific
# file paths. Strip that line and keep the remaining lines with counter debug
# data.
tail -n +2 "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.issue-93054.txt \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage_counters.issue-93054.txt
# Compare the show coverage output (`--bless` refreshes `typical` files).
#
# FIXME(richkadel): None of the Rust test source samples have the
# `// ignore-llvm-cov-show-diffs` anymore. This directive exists to work around a limitation
# with `llvm-cov show`. When reporting coverage for multiple instantiations of a generic function,
# with different type substitutions, `llvm-cov show` prints these in a non-deterministic order,
# breaking the `diff` comparison.
#
# A partial workaround is implemented below, with `diff --ignore-matching-lines=RE`
# to ignore each line prefixing each generic instantiation coverage code region.
#
# This workaround only works if the coverage counts are identical across all reported
# instantiations. If there is no way to ensure this, you may need to apply the
# `// ignore-llvm-cov-show-diffs` directive, and check for differences using the
# `.json` files to validate that results have not changed. (Until then, the JSON
# files are redundant, so there is no need to generate `expected_*.json` files or
# compare actual JSON results.)
diff -u --strip-trailing-cr --ignore-matching-lines='^  | .*::<.*>.*:$' --ignore-matching-lines='^  | <.*>::.*:$' \
 expected_show_coverage.issue-93054.txt "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.issue-93054.txt || \
 ( grep -q '^\/\/ ignore-llvm-cov-show-diffs' ../coverage/issue-93054.rs && \
  >&2 echo 'diff failed, but suppressed with `// ignore-llvm-cov-show-diffs` in ../coverage/issue-93054.rs' \
 ) || \
 ( >&2 echo 'diff failed, and not suppressed without `// ignore-llvm-cov-show-diffs` in ../coverage/issue-93054.rs'; \
 )
# Compile the test program with coverage instrumentation
# Compile the test program with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/uses_crate.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/uses_crate.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Run it in order to generate some profiling data,
# with `LLVM_PROFILE_FILE=<profdata_file>` environment variable set to
# output the coverage stats for this run.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/uses_crate.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/uses_crate || \
  ( \
   status=$?; \
   grep -q "^\/\/ expect-exit-status-$status" ../coverage/uses_crate.rs || \
   ( >&2 echo "program exited with an unexpected exit status: $status"; \
   ) \
  )
used_from_bin_crate_and_lib_crate_generic_function with "used from library used_crate.rs"
used_with_same_type_from_bin_crate_and_lib_crate_generic_function with "used from library used_crate.rs"
used_with_same_type_from_bin_crate_and_lib_crate_generic_function with "used from library used_crate.rs"
used_only_from_this_lib_crate_generic_function with [5, 6, 7, 8]
used_only_from_this_lib_crate_generic_function with "used ONLY from library used_crate.rs"
used_only_from_bin_crate_generic_function with [1, 2, 3, 4]
used_only_from_bin_crate_generic_function with "used from bin uses_crate.rs"
used_from_bin_crate_and_lib_crate_generic_function with [1, 2, 3, 4]
used_with_same_type_from_bin_crate_and_lib_crate_generic_function with "interesting?"
# Run it through rustdoc as well to cover doctests.
# `%p` is the pid, and `%m` the binary signature. We suspect that the pid alone
# might result in overwritten files and failed tests, as rustdoc spawns each
# doctest as its own process, so make sure the filename is as unique as possible.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/uses_crate-%p-%m.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc' -L /checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib --crate-name workaround_for_79771 --test ../coverage/uses_crate.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/uses_crate.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage \
  -Z unstable-options --persist-doctests=/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-uses_crate
running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s


# Postprocess the profiling data so it can be used by the llvm-cov tool
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-profdata merge --sparse \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/uses_crate*.profraw \
  -o "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/uses_crate.profdata
# Generate a coverage report using `llvm-cov show`.
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-cov show \
  --debug \
  --ignore-filename-regex='(uses_crate.rs|uses_inline_crate.rs|unused_mod.rs)' \
  --compilation-dir=. \
  --Xdemangler="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2-tools-bin/rust-demangler" \
  --show-line-counts-or-regions \
  --instr-profile="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/uses_crate.profdata \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/uses_crate \
  $( for file in /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-uses_crate/*/rust_out*; do [ -x "$file" ] && printf "%s %s " -object $file; done ) \
 2> "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.uses_crate.txt \
 | "/usr/bin/python3" ../coverage-reports/normalize_paths.py \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.uses_crate.txt || \
( status=$? ; \
 >&2 cat "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.uses_crate.txt ; \
 exit $status \
)
# The first line (beginning with "Args:" contains hard-coded, build-specific
# file paths. Strip that line and keep the remaining lines with counter debug
# data.
tail -n +2 "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.uses_crate.txt \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage_counters.uses_crate.txt
# Compare the show coverage output (`--bless` refreshes `typical` files).
#
# FIXME(richkadel): None of the Rust test source samples have the
# `// ignore-llvm-cov-show-diffs` anymore. This directive exists to work around a limitation
# with `llvm-cov show`. When reporting coverage for multiple instantiations of a generic function,
# with different type substitutions, `llvm-cov show` prints these in a non-deterministic order,
# breaking the `diff` comparison.
#
# A partial workaround is implemented below, with `diff --ignore-matching-lines=RE`
# to ignore each line prefixing each generic instantiation coverage code region.
#
# This workaround only works if the coverage counts are identical across all reported
# instantiations. If there is no way to ensure this, you may need to apply the
# `// ignore-llvm-cov-show-diffs` directive, and check for differences using the
# `.json` files to validate that results have not changed. (Until then, the JSON
# files are redundant, so there is no need to generate `expected_*.json` files or
# compare actual JSON results.)
diff -u --strip-trailing-cr --ignore-matching-lines='^  | .*::<.*>.*:$' --ignore-matching-lines='^  | <.*>::.*:$' \
 expected_show_coverage.uses_crate.txt "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.uses_crate.txt || \
 ( grep -q '^\/\/ ignore-llvm-cov-show-diffs' ../coverage/uses_crate.rs && \
  >&2 echo 'diff failed, but suppressed with `// ignore-llvm-cov-show-diffs` in ../coverage/uses_crate.rs' \
 ) || \
 ( >&2 echo 'diff failed, and not suppressed without `// ignore-llvm-cov-show-diffs` in ../coverage/uses_crate.rs'; \
 )
 )
--- expected_show_coverage.uses_crate.txt 2023-05-03 11:53:19.265546387 +0000
+++ /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/actual_show_coverage.uses_crate.txt 2023-05-03 12:45:44.049103052 +0000
@@ -24,13 +24,11 @@
   |   18|      1|    println!("used_only_from_bin_crate_generic_function with {:?}", arg);
   |   19|      1|}
   ------------------
-  | used_crate::used_only_from_bin_crate_generic_function::<&alloc::vec::Vec<i32>>:
+  | used_crate::used_only_from_bin_crate_generic_function::<&str>:
   |   17|      1|pub fn used_only_from_bin_crate_generic_function<T: Debug>(arg: T) {
   |   18|      1|    println!("used_only_from_bin_crate_generic_function with {:?}", arg);
   |   19|      1|}
   ------------------
-  | Unexecuted instantiation: used_crate::used_only_from_bin_crate_generic_function::<_>
-  ------------------
    20|       |// Expect for above function: `Unexecuted instantiation` (see below)
    21|      2|pub fn used_only_from_this_lib_crate_generic_function<T: Debug>(arg: T) {
    22|      2|    println!("used_only_from_this_lib_crate_generic_function with {:?}", arg);
@@ -77,9 +75,9 @@
   |   31|      1|}
    32|       |
    32|       |
-   33|      0|pub fn unused_generic_function<T: Debug>(arg: T) {
-   34|      0|    println!("unused_generic_function with {:?}", arg);
-   35|      0|}
+   33|       |pub fn unused_generic_function<T: Debug>(arg: T) {
+   34|       |    println!("unused_generic_function with {:?}", arg);
+   35|       |}
    37|      0|pub fn unused_function() {
    38|      0|    let is_true = std::env::args().len() == 1;
    38|      0|    let is_true = std::env::args().len() == 1;
@@ -89,13 +87,13 @@
    43|      0|}
    44|       |
-   45|      0|fn unused_private_function() {
-   46|      0|    let is_true = std::env::args().len() == 1;
---
+   49|       |        countdown = 20;
+   50|       |    }
+   51|       |}
    52|       |
    53|      1|fn use_this_lib_crate() {
    54|      1|    used_from_bin_crate_and_lib_crate_generic_function("used from library used_crate.rs");
# Compile the test program with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/inline.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/inline.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Run it in order to generate some profiling data,
# with `LLVM_PROFILE_FILE=<profdata_file>` environment variable set to
# output the coverage stats for this run.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/inline.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/inline || \
  ( \
   status=$?; \
   grep -q "^\/\/ expect-exit-status-$status" ../coverage/inline.rs || \
   ( >&2 echo "program exited with an unexpected exit status: $status"; \
   ) \
  )
abc
acb
acb
bac
bca
cba
cab
# Run it through rustdoc as well to cover doctests.
# `%p` is the pid, and `%m` the binary signature. We suspect that the pid alone
# might result in overwritten files and failed tests, as rustdoc spawns each
# doctest as its own process, so make sure the filename is as unique as possible.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/inline-%p-%m.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc' -L /checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib --crate-name workaround_for_79771 --test ../coverage/inline.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/inline.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage \
  -Z unstable-options --persist-doctests=/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-inline
running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s


# Postprocess the profiling data so it can be used by the llvm-cov tool
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-profdata merge --sparse \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/inline*.profraw \
  -o "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/inline.profdata
# Generate a coverage report using `llvm-cov show`.
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-cov show \
  --debug \
  --ignore-filename-regex='(uses_crate.rs|uses_inline_crate.rs|unused_mod.rs)' \
  --compilation-dir=. \
  --Xdemangler="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2-tools-bin/rust-demangler" \
  --show-line-counts-or-regions \
  --instr-profile="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/inline.profdata \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/inline \
  $( for file in /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-inline/*/rust_out*; do [ -x "$file" ] && printf "%s %s " -object $file; done ) \
 2> "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.inline.txt \
 | "/usr/bin/python3" ../coverage-reports/normalize_paths.py \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.inline.txt || \
( status=$? ; \
 >&2 cat "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.inline.txt ; \
 exit $status \
)
# The first line (beginning with "Args:" contains hard-coded, build-specific
# file paths. Strip that line and keep the remaining lines with counter debug
# data.
tail -n +2 "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.inline.txt \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage_counters.inline.txt
# Compare the show coverage output (`--bless` refreshes `typical` files).
#
# FIXME(richkadel): None of the Rust test source samples have the
# `// ignore-llvm-cov-show-diffs` anymore. This directive exists to work around a limitation
# with `llvm-cov show`. When reporting coverage for multiple instantiations of a generic function,
# with different type substitutions, `llvm-cov show` prints these in a non-deterministic order,
# breaking the `diff` comparison.
#
# A partial workaround is implemented below, with `diff --ignore-matching-lines=RE`
# to ignore each line prefixing each generic instantiation coverage code region.
#
# This workaround only works if the coverage counts are identical across all reported
# instantiations. If there is no way to ensure this, you may need to apply the
# `// ignore-llvm-cov-show-diffs` directive, and check for differences using the
# `.json` files to validate that results have not changed. (Until then, the JSON
# files are redundant, so there is no need to generate `expected_*.json` files or
# compare actual JSON results.)
diff -u --strip-trailing-cr --ignore-matching-lines='^  | .*::<.*>.*:$' --ignore-matching-lines='^  | <.*>::.*:$' \
 expected_show_coverage.inline.txt "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.inline.txt || \
 ( grep -q '^\/\/ ignore-llvm-cov-show-diffs' ../coverage/inline.rs && \
  >&2 echo 'diff failed, but suppressed with `// ignore-llvm-cov-show-diffs` in ../coverage/inline.rs' \
 ) || \
 ( >&2 echo 'diff failed, and not suppressed without `// ignore-llvm-cov-show-diffs` in ../coverage/inline.rs'; \
 )
# Compile the test program with coverage instrumentation
# Compile the test program with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/lazy_boolean.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/lazy_boolean.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Run it in order to generate some profiling data,
# with `LLVM_PROFILE_FILE=<profdata_file>` environment variable set to
# output the coverage stats for this run.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/lazy_boolean.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/lazy_boolean || \
  ( \
   status=$?; \
   grep -q "^\/\/ expect-exit-status-$status" ../coverage/lazy_boolean.rs || \
   ( >&2 echo "program exited with an unexpected exit status: $status"; \
   ) \
  )
  )
# Run it through rustdoc as well to cover doctests.
# `%p` is the pid, and `%m` the binary signature. We suspect that the pid alone
# might result in overwritten files and failed tests, as rustdoc spawns each
# doctest as its own process, so make sure the filename is as unique as possible.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/lazy_boolean-%p-%m.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc' -L /checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib --crate-name workaround_for_79771 --test ../coverage/lazy_boolean.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/lazy_boolean.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage \
  -Z unstable-options --persist-doctests=/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-lazy_boolean
running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s


# Postprocess the profiling data so it can be used by the llvm-cov tool
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-profdata merge --sparse \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/lazy_boolean*.profraw \
  -o "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/lazy_boolean.profdata
# Generate a coverage report using `llvm-cov show`.
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-cov show \
  --debug \
  --ignore-filename-regex='(uses_crate.rs|uses_inline_crate.rs|unused_mod.rs)' \
  --compilation-dir=. \
  --Xdemangler="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2-tools-bin/rust-demangler" \
  --show-line-counts-or-regions \
  --instr-profile="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/lazy_boolean.profdata \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/lazy_boolean \
  $( for file in /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-lazy_boolean/*/rust_out*; do [ -x "$file" ] && printf "%s %s " -object $file; done ) \
 2> "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.lazy_boolean.txt \
 | "/usr/bin/python3" ../coverage-reports/normalize_paths.py \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.lazy_boolean.txt || \
( status=$? ; \
 >&2 cat "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.lazy_boolean.txt ; \
 exit $status \
)
# The first line (beginning with "Args:" contains hard-coded, build-specific
# file paths. Strip that line and keep the remaining lines with counter debug
# data.
tail -n +2 "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.lazy_boolean.txt \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage_counters.lazy_boolean.txt
# Compare the show coverage output (`--bless` refreshes `typical` files).
#
# FIXME(richkadel): None of the Rust test source samples have the
# `// ignore-llvm-cov-show-diffs` anymore. This directive exists to work around a limitation
# with `llvm-cov show`. When reporting coverage for multiple instantiations of a generic function,
# with different type substitutions, `llvm-cov show` prints these in a non-deterministic order,
# breaking the `diff` comparison.
#
# A partial workaround is implemented below, with `diff --ignore-matching-lines=RE`
# to ignore each line prefixing each generic instantiation coverage code region.
#
# This workaround only works if the coverage counts are identical across all reported
# instantiations. If there is no way to ensure this, you may need to apply the
# `// ignore-llvm-cov-show-diffs` directive, and check for differences using the
# `.json` files to validate that results have not changed. (Until then, the JSON
# files are redundant, so there is no need to generate `expected_*.json` files or
# compare actual JSON results.)
diff -u --strip-trailing-cr --ignore-matching-lines='^  | .*::<.*>.*:$' --ignore-matching-lines='^  | <.*>::.*:$' \
 expected_show_coverage.lazy_boolean.txt "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.lazy_boolean.txt || \
 ( grep -q '^\/\/ ignore-llvm-cov-show-diffs' ../coverage/lazy_boolean.rs && \
  >&2 echo 'diff failed, but suppressed with `// ignore-llvm-cov-show-diffs` in ../coverage/lazy_boolean.rs' \
 ) || \
 ( >&2 echo 'diff failed, and not suppressed without `// ignore-llvm-cov-show-diffs` in ../coverage/lazy_boolean.rs'; \
 )
# Compile the test program with coverage instrumentation
# Compile the test program with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/issue-85461.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/issue-85461.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Run it in order to generate some profiling data,
# with `LLVM_PROFILE_FILE=<profdata_file>` environment variable set to
# output the coverage stats for this run.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/issue-85461.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/issue-85461 || \
  ( \
   status=$?; \
   grep -q "^\/\/ expect-exit-status-$status" ../coverage/issue-85461.rs || \
   ( >&2 echo "program exited with an unexpected exit status: $status"; \
   ) \
  )
  )
# Run it through rustdoc as well to cover doctests.
# `%p` is the pid, and `%m` the binary signature. We suspect that the pid alone
# might result in overwritten files and failed tests, as rustdoc spawns each
# doctest as its own process, so make sure the filename is as unique as possible.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/issue-85461-%p-%m.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc' -L /checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib --crate-name workaround_for_79771 --test ../coverage/issue-85461.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/issue-85461.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage \
  -Z unstable-options --persist-doctests=/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-issue-85461
running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s


# Postprocess the profiling data so it can be used by the llvm-cov tool
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-profdata merge --sparse \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/issue-85461*.profraw \
  -o "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/issue-85461.profdata
# Generate a coverage report using `llvm-cov show`.
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-cov show \
  --debug \
  --ignore-filename-regex='(uses_crate.rs|uses_inline_crate.rs|unused_mod.rs)' \
  --compilation-dir=. \
  --Xdemangler="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2-tools-bin/rust-demangler" \
  --show-line-counts-or-regions \
  --instr-profile="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/issue-85461.profdata \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/issue-85461 \
  $( for file in /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-issue-85461/*/rust_out*; do [ -x "$file" ] && printf "%s %s " -object $file; done ) \
 2> "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.issue-85461.txt \
 | "/usr/bin/python3" ../coverage-reports/normalize_paths.py \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.issue-85461.txt || \
( status=$? ; \
 >&2 cat "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.issue-85461.txt ; \
 exit $status \
)
# The first line (beginning with "Args:" contains hard-coded, build-specific
# file paths. Strip that line and keep the remaining lines with counter debug
# data.
tail -n +2 "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.issue-85461.txt \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage_counters.issue-85461.txt
# Compare the show coverage output (`--bless` refreshes `typical` files).
#
# FIXME(richkadel): None of the Rust test source samples have the
# `// ignore-llvm-cov-show-diffs` anymore. This directive exists to work around a limitation
# with `llvm-cov show`. When reporting coverage for multiple instantiations of a generic function,
# with different type substitutions, `llvm-cov show` prints these in a non-deterministic order,
# breaking the `diff` comparison.
#
# A partial workaround is implemented below, with `diff --ignore-matching-lines=RE`
# to ignore each line prefixing each generic instantiation coverage code region.
#
# This workaround only works if the coverage counts are identical across all reported
# instantiations. If there is no way to ensure this, you may need to apply the
# `// ignore-llvm-cov-show-diffs` directive, and check for differences using the
# `.json` files to validate that results have not changed. (Until then, the JSON
# files are redundant, so there is no need to generate `expected_*.json` files or
# compare actual JSON results.)
diff -u --strip-trailing-cr --ignore-matching-lines='^  | .*::<.*>.*:$' --ignore-matching-lines='^  | <.*>::.*:$' \
 expected_show_coverage.issue-85461.txt "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.issue-85461.txt || \
 ( grep -q '^\/\/ ignore-llvm-cov-show-diffs' ../coverage/issue-85461.rs && \
  >&2 echo 'diff failed, but suppressed with `// ignore-llvm-cov-show-diffs` in ../coverage/issue-85461.rs' \
 ) || \
 ( >&2 echo 'diff failed, and not suppressed without `// ignore-llvm-cov-show-diffs` in ../coverage/issue-85461.rs'; \
 )
# Compile the test program with coverage instrumentation
# Compile the test program with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/unused.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/unused.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Run it in order to generate some profiling data,
# with `LLVM_PROFILE_FILE=<profdata_file>` environment variable set to
# output the coverage stats for this run.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/unused.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/unused || \
  ( \
   status=$?; \
   grep -q "^\/\/ expect-exit-status-$status" ../coverage/unused.rs || \
   ( >&2 echo "program exited with an unexpected exit status: $status"; \
   ) \
  )
  )
# Run it through rustdoc as well to cover doctests.
# `%p` is the pid, and `%m` the binary signature. We suspect that the pid alone
# might result in overwritten files and failed tests, as rustdoc spawns each
# doctest as its own process, so make sure the filename is as unique as possible.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/unused-%p-%m.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc' -L /checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib --crate-name workaround_for_79771 --test ../coverage/unused.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/unused.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage \
  -Z unstable-options --persist-doctests=/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-unused
running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s


# Postprocess the profiling data so it can be used by the llvm-cov tool
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-profdata merge --sparse \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/unused*.profraw \
  -o "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/unused.profdata
# Generate a coverage report using `llvm-cov show`.
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-cov show \
  --debug \
  --ignore-filename-regex='(uses_crate.rs|uses_inline_crate.rs|unused_mod.rs)' \
  --compilation-dir=. \
  --Xdemangler="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2-tools-bin/rust-demangler" \
  --show-line-counts-or-regions \
  --instr-profile="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/unused.profdata \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/unused \
  $( for file in /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-unused/*/rust_out*; do [ -x "$file" ] && printf "%s %s " -object $file; done ) \
 2> "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.unused.txt \
 | "/usr/bin/python3" ../coverage-reports/normalize_paths.py \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.unused.txt || \
( status=$? ; \
 >&2 cat "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.unused.txt ; \
 exit $status \
)
# The first line (beginning with "Args:" contains hard-coded, build-specific
# file paths. Strip that line and keep the remaining lines with counter debug
# data.
tail -n +2 "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.unused.txt \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage_counters.unused.txt
# Compare the show coverage output (`--bless` refreshes `typical` files).
#
# FIXME(richkadel): None of the Rust test source samples have the
# `// ignore-llvm-cov-show-diffs` anymore. This directive exists to work around a limitation
# with `llvm-cov show`. When reporting coverage for multiple instantiations of a generic function,
# with different type substitutions, `llvm-cov show` prints these in a non-deterministic order,
# breaking the `diff` comparison.
#
# A partial workaround is implemented below, with `diff --ignore-matching-lines=RE`
# to ignore each line prefixing each generic instantiation coverage code region.
#
# This workaround only works if the coverage counts are identical across all reported
# instantiations. If there is no way to ensure this, you may need to apply the
# `// ignore-llvm-cov-show-diffs` directive, and check for differences using the
# `.json` files to validate that results have not changed. (Until then, the JSON
# files are redundant, so there is no need to generate `expected_*.json` files or
# compare actual JSON results.)
diff -u --strip-trailing-cr --ignore-matching-lines='^  | .*::<.*>.*:$' --ignore-matching-lines='^  | <.*>::.*:$' \
 expected_show_coverage.unused.txt "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.unused.txt || \
 ( grep -q '^\/\/ ignore-llvm-cov-show-diffs' ../coverage/unused.rs && \
  >&2 echo 'diff failed, but suppressed with `// ignore-llvm-cov-show-diffs` in ../coverage/unused.rs' \
 ) || \
 ( >&2 echo 'diff failed, and not suppressed without `// ignore-llvm-cov-show-diffs` in ../coverage/unused.rs'; \
 )
# Compile the test program with coverage instrumentation
# Compile the test program with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/overflow.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/overflow.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Run it in order to generate some profiling data,
# with `LLVM_PROFILE_FILE=<profdata_file>` environment variable set to
# output the coverage stats for this run.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/overflow.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/overflow || \
  ( \
   status=$?; \
   grep -q "^\/\/ expect-exit-status-$status" ../coverage/overflow.rs || \
   ( >&2 echo "program exited with an unexpected exit status: $status"; \
   ) \
  )
  )
does 4294967290 + 1 overflow?
continuing after overflow check
Result: 4294967291
does 4294967290 + 1 overflow?
continuing after overflow check
Result: 4294967291
does 4294967290 + 1 overflow?
continuing after overflow check
this will probably overflow
this will probably overflow
does 4294967290 + 10 overflow?
# Run it through rustdoc as well to cover doctests.
# `%p` is the pid, and `%m` the binary signature. We suspect that the pid alone
# might result in overwritten files and failed tests, as rustdoc spawns each
# doctest as its own process, so make sure the filename is as unique as possible.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/overflow-%p-%m.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc' -L /checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib --crate-name workaround_for_79771 --test ../coverage/overflow.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/overflow.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage \
  -Z unstable-options --persist-doctests=/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-overflow
running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s


# Postprocess the profiling data so it can be used by the llvm-cov tool
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-profdata merge --sparse \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/overflow*.profraw \
  -o "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/overflow.profdata
# Generate a coverage report using `llvm-cov show`.
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-cov show \
  --debug \
  --ignore-filename-regex='(uses_crate.rs|uses_inline_crate.rs|unused_mod.rs)' \
  --compilation-dir=. \
  --Xdemangler="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2-tools-bin/rust-demangler" \
  --show-line-counts-or-regions \
  --instr-profile="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/overflow.profdata \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/overflow \
  $( for file in /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-overflow/*/rust_out*; do [ -x "$file" ] && printf "%s %s " -object $file; done ) \
 2> "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.overflow.txt \
 | "/usr/bin/python3" ../coverage-reports/normalize_paths.py \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.overflow.txt || \
( status=$? ; \
 >&2 cat "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.overflow.txt ; \
 exit $status \
)
# The first line (beginning with "Args:" contains hard-coded, build-specific
# file paths. Strip that line and keep the remaining lines with counter debug
# data.
tail -n +2 "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.overflow.txt \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage_counters.overflow.txt
# Compare the show coverage output (`--bless` refreshes `typical` files).
#
# FIXME(richkadel): None of the Rust test source samples have the
# `// ignore-llvm-cov-show-diffs` anymore. This directive exists to work around a limitation
# with `llvm-cov show`. When reporting coverage for multiple instantiations of a generic function,
# with different type substitutions, `llvm-cov show` prints these in a non-deterministic order,
# breaking the `diff` comparison.
#
# A partial workaround is implemented below, with `diff --ignore-matching-lines=RE`
# to ignore each line prefixing each generic instantiation coverage code region.
#
# This workaround only works if the coverage counts are identical across all reported
# instantiations. If there is no way to ensure this, you may need to apply the
# `// ignore-llvm-cov-show-diffs` directive, and check for differences using the
# `.json` files to validate that results have not changed. (Until then, the JSON
# files are redundant, so there is no need to generate `expected_*.json` files or
# compare actual JSON results.)
diff -u --strip-trailing-cr --ignore-matching-lines='^  | .*::<.*>.*:$' --ignore-matching-lines='^  | <.*>::.*:$' \
 expected_show_coverage.overflow.txt "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.overflow.txt || \
 ( grep -q '^\/\/ ignore-llvm-cov-show-diffs' ../coverage/overflow.rs && \
  >&2 echo 'diff failed, but suppressed with `// ignore-llvm-cov-show-diffs` in ../coverage/overflow.rs' \
 ) || \
 ( >&2 echo 'diff failed, and not suppressed without `// ignore-llvm-cov-show-diffs` in ../coverage/overflow.rs'; \
 )
# Compile the test program with coverage instrumentation
# Compile the test program with coverage instrumentation
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports  ../coverage/closure_macro_async.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/closure_macro_async.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage --target x86_64-unknown-linux-gnu
# Run it in order to generate some profiling data,
# with `LLVM_PROFILE_FILE=<profdata_file>` environment variable set to
# output the coverage stats for this run.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/closure_macro_async.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/closure_macro_async || \
  ( \
   status=$?; \
   grep -q "^\/\/ expect-exit-status-$status" ../coverage/closure_macro_async.rs || \
   ( >&2 echo "program exited with an unexpected exit status: $status"; \
   ) \
  )
Starting service
Starting service
# Run it through rustdoc as well to cover doctests.
# `%p` is the pid, and `%m` the binary signature. We suspect that the pid alone
# might result in overwritten files and failed tests, as rustdoc spawns each
# doctest as its own process, so make sure the filename is as unique as possible.
LLVM_PROFILE_FILE="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/closure_macro_async-%p-%m.profraw \
  LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustdoc' -L /checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib --crate-name workaround_for_79771 --test ../coverage/closure_macro_async.rs \
  $( sed -n 's/^\/\/ compile-flags: \([^#]*\).*/\1/p' ../coverage/closure_macro_async.rs ) \
  -L "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports" -Cinstrument-coverage \
  -Z unstable-options --persist-doctests=/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-closure_macro_async
running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s


# Postprocess the profiling data so it can be used by the llvm-cov tool
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-profdata merge --sparse \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/closure_macro_async*.profraw \
  -o "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/closure_macro_async.profdata
# Generate a coverage report using `llvm-cov show`.
"/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/bin"/llvm-cov show \
  --debug \
  --ignore-filename-regex='(uses_crate.rs|uses_inline_crate.rs|unused_mod.rs)' \
  --compilation-dir=. \
  --Xdemangler="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2-tools-bin/rust-demangler" \
  --show-line-counts-or-regions \
  --instr-profile="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/closure_macro_async.profdata \
  "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/closure_macro_async \
  $( for file in /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports/rustdoc-closure_macro_async/*/rust_out*; do [ -x "$file" ] && printf "%s %s " -object $file; done ) \
 2> "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.closure_macro_async.txt \
 | "/usr/bin/python3" ../coverage-reports/normalize_paths.py \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage.closure_macro_async.txt || \
( status=$? ; \
 >&2 cat "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.closure_macro_async.txt ; \
 exit $status \
)
# The first line (beginning with "Args:" contains hard-coded, build-specific
# file paths. Strip that line and keep the remaining lines with counter debug
# data.
tail -n +2 "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/show_coverage_stderr.closure_macro_async.txt \
 > "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/coverage-reports/coverage-reports"/actual_show_coverage_counters.closure_macro_async.txt
# Compare the show coverage output (`--bless` refreshes `typical` files).
#
# FIXME(richkadel): None of the Rust test source samples have the
# `// ignore-llvm-cov-show-diffs` anymore. This directive exists to work around a limitation
# with `llvm-cov show`. When reporting coverage for multiple instantiations of a generic function,
# with different type substitutions, `llvm-cov show` prints these in a non-deterministic order,
# breaking the `diff` comparison.
#
# A partial workaround is implemented below, with `diff --ignore-matching-lines=RE`
# to ignore each line prefixing each generic instantiation coverage code region.
#
# This workaround only works if the coverage counts are identical across all reported
# instantiations. If there is no way to ensure this, you may need to apply the
# `// ignore-llvm-cov-show-diffs` directive, and check for differences using the
# `.json` files to validate that results have not changed. (Until then, the JSON
---
   = note: `#[warn(dead_code)]` on by default

warning: 1 warning emitted

warning: function `unused_fn` is never used
  --> ../coverage/dead_code.rs:15:4
15 | fn unused_fn() {
   |    ^^^^^^^^^
   |
   = note: `#[warn(dead_code)]` on by default
   = note: `#[warn(dead_code)]` on by default

warning: 1 warning emitted

diff failed, but suppressed with `// ignore-llvm-cov-show-diffs` in ../coverage/uses_inline_crate.rs
thread 'main' panicked at 'assertion failed: `(left == right)`
  left: `2`,
  left: `2`,
 right: `3`: the argument was wrong', ../coverage/assert.rs:6:5
Error: 1
warning: function `do_not_add_coverage_not_called` is never used
warning: function `do_not_add_coverage_not_called` is never used
  --> ../coverage/no_cov_crate.rs:15:4
   |
15 | fn do_not_add_coverage_not_called() {
   |
   = note: `#[warn(dead_code)]` on by default

warning: function `add_coverage_not_called` is never used
warning: function `add_coverage_not_called` is never used
  --> ../coverage/no_cov_crate.rs:27:4
27 | fn add_coverage_not_called() {
   |    ^^^^^^^^^^^^^^^^^^^^^^^

warning: 2 warnings emitted
warning: 2 warnings emitted

warning: unreachable statement
  --> ../coverage/issue-93054.rs:12:9
   |
11 |         match self { }
   |         -------------- any code following this expression is unreachable
12 |         make().map(|never| match never { });
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
   = note: `#[warn(unreachable_code)]` on by default


warning: enum `Never` is never used
 --> ../coverage/issue-93054.rs:7:6
  |
7 | enum Never { }
  |
  = note: `#[warn(dead_code)]` on by default


warning: methods `foo` and `bar` are never used
  --> ../coverage/issue-93054.rs:10:8
9  | impl Never {
   | ---------- methods in this implementation
10 |     fn foo(self) {
   |        ^^^
   |        ^^^
...
15 |     fn bar(&self) {
   |        ^^^

warning: function `foo2` is never used
  --> ../coverage/issue-93054.rs:20:10
   |
20 | async fn foo2(never: Never) {


warning: function `make` is never used
  --> ../coverage/issue-93054.rs:24:4
   |
24 | fn make() -> Option<Never> {

warning: 5 warnings emitted


diff failed, but suppressed with `// ignore-llvm-cov-show-diffs` in ../coverage/uses_crate.rs
warning: unused variable: `x`
 --> ../coverage/unused.rs:1:11
1 | fn foo<T>(x: T) {
  |           ^ help: if this is intentional, prefix it with an underscore: `_x`
  |
  = note: `#[warn(unused_variables)]` on by default
---
   |
19 |         a += 1;
   |         ^
   |
   = help: maybe it is overwritten before being read?

warning: value assigned to `a` is never read
  --> ../coverage/unused.rs:25:9
   |
   |
25 |         a += 1;
   |         ^
   |
   = help: maybe it is overwritten before being read?
warning: value assigned to `a` is never read
  --> ../coverage/unused.rs:31:9
   |
31 |         a += 1;
31 |         a += 1;
   |         ^
   |
   = help: maybe it is overwritten before being read?

warning: function `unused_template_func` is never used
 --> ../coverage/unused.rs:9:4
9 | fn unused_template_func<T>(x: T) {
  |    ^^^^^^^^^^^^^^^^^^^^
  |
  = note: `#[warn(dead_code)]` on by default
  = note: `#[warn(dead_code)]` on by default

warning: function `unused_func` is never used
  --> ../coverage/unused.rs:17:4
   |
17 | fn unused_func(mut a: u32) {


warning: function `unused_func2` is never used
  --> ../coverage/unused.rs:23:4
   |
23 | fn unused_func2(mut a: u32) {


warning: function `unused_func3` is never used
  --> ../coverage/unused.rs:29:4
   |
29 | fn unused_func3(mut a: u32) {

warning: unused logical operation that must be used
 --> ../coverage/unused.rs:4:9
  |
  |
4 |         i != 0 || i != 0;
  |
  = note: `#[warn(unused_must_use)]` on by default
help: use `let _ = ...` to ignore the resulting value
  |
  |
4 |         let _ = i != 0 || i != 0;

warning: unused logical operation that must be used
  --> ../coverage/unused.rs:12:9
   |
   |
12 |         i != 0 || i != 0;
   |
help: use `let _ = ...` to ignore the resulting value
   |
   |
12 |         let _ = i != 0 || i != 0;

warning: 11 warnings emitted


thread 'main' panicked at 'attempt to add with overflow', ../coverage/overflow.rs:10:18
warning: unused `Result` that must be used
  --> ../coverage/closure_macro_async.rs:44:5
   |
   |
44 |     executor::block_on(test());
   |
   |
   = note: this `Result` may be an `Err` variant, which should be handled
help: use `let _ = ...` to ignore the resulting value
   |
   |
44 |     let _ = executor::block_on(test());

warning: 1 warning emitted

thread 'main' panicked at 'assertion failed: `(left == right)`
thread 'main' panicked at 'assertion failed: `(left == right)`
  left: `try and succeed`,
 right: `try and succeed`: this assert should fail', ../coverage/issue-84561.rs:123:5
warning: function `never_called_function` is never used
 --> ../coverage/lib/unused_mod_helper.rs:1:8
  |
1 | pub fn never_called_function() {
1 | pub fn never_called_function() {
  |        ^^^^^^^^^^^^^^^^^^^^^
  |
  = note: `#[warn(dead_code)]` on by default

warning: 1 warning emitted

warning: unused imports: `future::Future`, `marker::Send`, `pin::Pin`
 --> ../coverage/async2.rs:4:5
4 |     future::Future,
  |     ^^^^^^^^^^^^^^
5 |     marker::Send,
  |     ^^^^^^^^^^^^
  |     ^^^^^^^^^^^^
6 |     pin::Pin,
  |     ^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` on by default

warning: 1 warning emitted

diff failed, and not suppressed without `// ignore-llvm-cov-show-diffs` in ../coverage/async.rs
make: *** [Makefile:128: async] Error 1



failures:

Zalathar · 2023-05-03T13:00:04Z

I've concluded that:

GNU diff treats | as a literal pipe character, and treats \| as a regex or.
Apple/FreeBSD diff treats | as a regex or, and treats \| as a literal pipe character.

So the regexes in the original Makefile were correct on Linux, and broken on Mac. The changes in #110942 fixed them on Mac, but silently broke them on Linux (which is where they actually get checked in CI).

I think I'll need to update the regexes to use [|] (which should match a literal pipe on either platform), and also write some extra tests to make it harder for this sort of thing to happen again.

bors · 2023-05-12T11:15:16Z

☔ The latest upstream changes (presumably #111493) made this pull request unmergeable. Please resolve the merge conflicts.

rustbot assigned Mark-Simulacrum May 3, 2023

rustbot added A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-infra Relevant to the infrastructure team, which will review and decide on the PR/issue. labels May 3, 2023

Zalathar force-pushed the coverage-tests branch 2 times, most recently from 3dbe4b1 to 197dd01 Compare May 3, 2023 01:25

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Dylan-DPC unassigned Mark-Simulacrum May 3, 2023

Dylan-DPC added S-experimental Status: Ongoing experiment that does not require reviewing and won't be merged in its current state. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels May 3, 2023

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Zalathar force-pushed the coverage-tests branch from 91b2a06 to 4ec8ef0 Compare May 3, 2023 10:32

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Zalathar added 2 commits May 3, 2023 21:46

Run x86_64-gnu in PR tests

533e770

Revert the escaping of literal pipe characters

4f9b942

Zalathar force-pushed the coverage-tests branch from 4ec8ef0 to 4f9b942 Compare May 3, 2023 11:52

Zalathar mentioned this pull request May 4, 2023

Portably escape pipe characters in diff --ignore-matching-lines regexes #111171

Closed

bors added the S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. label May 12, 2023

Zalathar closed this May 12, 2023

Zalathar deleted the coverage-tests branch May 31, 2023 01:22

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