ICE: Closure arguments are not passed as a tuple #110829

CosmicHorrorDev · 2023-04-25T21:10:24Z

Minimized from mocktopus v0.8. This requires --release to trigger the ICE and appears to have started with nightly-2023-04-18, and still occurs on the most recent nightly. I haven't taken the time to bisect any further. I hope this is reasonably minimized!

Code

#![feature(fn_traits, tuple_trait, unboxed_closures)]

use std::marker::Tuple;

fn call<I: Tuple>(mut mock: Box<dyn FnMut<I, Output = ()>>, input: I) {
    mock.call_mut(input)
}

Error output

$ cargo build --release
   Compiling mocktopus v0.8.0 (/tmp/Mocktopus)
warning: function `call` is never used
 --> src/lib.rs:5:4
  |
5 | fn call<I: Tuple>(mut mock: Box<dyn FnMut<I, Output = ()>>, input: I) {
  |    ^^^^
  |
  = note: `#[warn(dead_code)]` on by default

error: internal compiler error: compiler/rustc_mir_transform/src/inline.rs:210:17: Closure arguments are not passed as a tuple

thread 'rustc' panicked at 'Box<dyn Any>', /rustc/7908a1d65496b88626e4b7c193c81d777005d6f3/compiler/rustc_errors/src/lib.rs:1643:9
stack backtrace:
   0:     ... elided see "Backtrace" for the backtrace ...

note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md

note: rustc 1.71.0-nightly (7908a1d65 2023-04-17) running on x86_64-unknown-linux-gnu

note: compiler flags: --crate-type rlib -C opt-level=3 -C embed-bitcode=no

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [optimized_mir] optimizing MIR for `call`
end of query stack
warning: `mocktopus` (lib) generated 1 warning
error: could not compile `mocktopus` (lib); 1 warning emitted

Backtrace

$ RUSTC_BACKTRACE=1 cargo build --release
   Compiling mocktopus v0.8.0 (/tmp/Mocktopus)
warning: function `call` is never used
 --> src/lib.rs:5:4
  |
5 | fn call<I: Tuple>(mut mock: Box<dyn FnMut<I, Output = ()>>, input: I) {
  |    ^^^^
  |
  = note: `#[warn(dead_code)]` on by default

error: internal compiler error: compiler/rustc_mir_transform/src/inline.rs:210:17: Closure arguments are not passed as a tuple

thread 'rustc' panicked at 'Box<dyn Any>', /rustc/7908a1d65496b88626e4b7c193c81d777005d6f3/compiler/rustc_errors/src/lib.rs:1643:9
stack backtrace:
   0:     0x7f45ffa423c2 - std::backtrace_rs::backtrace::libunwind::trace::h525b1374168ca5f5
                               at /rustc/7908a1d65496b88626e4b7c193c81d777005d6f3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7f45ffa423c2 - std::backtrace_rs::backtrace::trace_unsynchronized::hbe1189bd30120710
                               at /rustc/7908a1d65496b88626e4b7c193c81d777005d6f3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7f45ffa423c2 - std::sys_common::backtrace::_print_fmt::h6d41ce120747d96c
                               at /rustc/7908a1d65496b88626e4b7c193c81d777005d6f3/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x7f45ffa423c2 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::he5f24c3f95c04d12
                               at /rustc/7908a1d65496b88626e4b7c193c81d777005d6f3/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7f45ffaa65df - core::fmt::write::hd579dd2cd8b90ab4
                               at /rustc/7908a1d65496b88626e4b7c193c81d777005d6f3/library/core/src/fmt/mod.rs:1254:17
   5:     0x7f45ffa35371 - std::io::Write::write_fmt::h08f41109b1759352
                               at /rustc/7908a1d65496b88626e4b7c193c81d777005d6f3/library/std/src/io/mod.rs:1698:15
   6:     0x7f45ffa421c5 - std::sys_common::backtrace::_print::h737d8d1dfcf76757
                               at /rustc/7908a1d65496b88626e4b7c193c81d777005d6f3/library/std/src/sys_common/backtrace.rs:47:5
   7:     0x7f45ffa421c5 - std::sys_common::backtrace::print::h39334e0c9054c05f
                               at /rustc/7908a1d65496b88626e4b7c193c81d777005d6f3/library/std/src/sys_common/backtrace.rs:34:9
   8:     0x7f45ffa44e87 - std::panicking::default_hook::{{closure}}::h25ffe0afd704bb41
   9:     0x7f45ffa44c75 - std::panicking::default_hook::hcc330145d87d1abb
                               at /rustc/7908a1d65496b88626e4b7c193c81d777005d6f3/library/std/src/panicking.rs:288:9
  10:     0x7f45fe844815 - <rustc_driver_impl[d341cd7f64842292]::DEFAULT_HOOK::{closure#0}::{closure#0} as core[b8003d5837be85a8]::ops::function::FnOnce<(&core[b8003d5837be85a8]::panic::panic_info::PanicInfo,)>>::call_once::{shim:vtable#0}
  11:     0x7f45ffa455c5 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hf364256ba514b763
                               at /rustc/7908a1d65496b88626e4b7c193c81d777005d6f3/library/alloc/src/boxed.rs:1987:9
  12:     0x7f45ffa455c5 - std::panicking::rust_panic_with_hook::hf301d5f852bec833
                               at /rustc/7908a1d65496b88626e4b7c193c81d777005d6f3/library/std/src/panicking.rs:695:13
  13:     0x7f45fed2d751 - std[d7940225b46693d5]::panicking::begin_panic::<rustc_errors[d6a490e475c9ddbc]::ExplicitBug>::{closure#0}
  14:     0x7f45fed2c746 - std[d7940225b46693d5]::sys_common::backtrace::__rust_end_short_backtrace::<std[d7940225b46693d5]::panicking::begin_panic<rustc_errors[d6a490e475c9ddbc]::ExplicitBug>::{closure#0}, !>
  15:     0x7f45fed6e946 - std[d7940225b46693d5]::panicking::begin_panic::<rustc_errors[d6a490e475c9ddbc]::ExplicitBug>
  16:     0x7f45fed98a26 - <rustc_errors[d6a490e475c9ddbc]::HandlerInner>::bug::<&alloc[3dcaa01c400bc274]::string::String>
  17:     0x7f45fed986f0 - <rustc_errors[d6a490e475c9ddbc]::Handler>::bug::<&alloc[3dcaa01c400bc274]::string::String>
  18:     0x7f45fed5985b - rustc_middle[8d82ae2353292c40]::util::bug::opt_span_bug_fmt::<rustc_span[e29a588bda90721d]::span_encoding::Span>::{closure#0}
  19:     0x7f45fed5912a - rustc_middle[8d82ae2353292c40]::ty::context::tls::with_opt::<rustc_middle[8d82ae2353292c40]::util::bug::opt_span_bug_fmt<rustc_span[e29a588bda90721d]::span_encoding::Span>::{closure#0}, !>::{closure#0}
  20:     0x7f45fed590f6 - rustc_middle[8d82ae2353292c40]::ty::context::tls::with_context_opt::<rustc_middle[8d82ae2353292c40]::ty::context::tls::with_opt<rustc_middle[8d82ae2353292c40]::util::bug::opt_span_bug_fmt<rustc_span[e29a588bda90721d]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
  21:     0x7f45fc9e7dad - rustc_middle[8d82ae2353292c40]::util::bug::bug_fmt
  22:     0x7f45fd5e0f28 - <rustc_mir_transform[9dff52a96676c387]::inline::Inliner>::try_inlining
  23:     0x7f45fd5da2a9 - <rustc_mir_transform[9dff52a96676c387]::inline::Inliner>::process_blocks
  24:     0x7f45fd5d9bb0 - <rustc_mir_transform[9dff52a96676c387]::inline::Inline as rustc_middle[8d82ae2353292c40]::mir::MirPass>::run_pass
  25:     0x7f45fdbaa513 - rustc_mir_transform[9dff52a96676c387]::optimized_mir
  26:     0x7f45fdba8f7f - rustc_query_system[710be7c369a0566b]::query::plumbing::try_execute_query::<rustc_query_impl[7870d32c57195004]::queries::optimized_mir, rustc_query_impl[7870d32c57195004]::plumbing::QueryCtxt>
  27:     0x7f45fda9c49f - <rustc_metadata[2daacc918453c32f]::rmeta::encoder::EncodeContext>::encode_crate_root
  28:     0x7f45fda27c92 - rustc_metadata[2daacc918453c32f]::rmeta::encoder::encode_metadata_impl
  29:     0x7f45fda1d131 - rustc_data_structures[e91acaf2cdf264b7]::sync::join::<rustc_metadata[2daacc918453c32f]::rmeta::encoder::encode_metadata::{closure#0}, rustc_metadata[2daacc918453c32f]::rmeta::encoder::encode_metadata::{closure#1}, (), ()>
  30:     0x7f45fda1cd5e - rustc_metadata[2daacc918453c32f]::rmeta::encoder::encode_metadata
  31:     0x7f45fda1b61c - rustc_metadata[2daacc918453c32f]::fs::encode_and_write_metadata
  32:     0x7f45fda15d00 - rustc_interface[6d2e349332c04921]::passes::start_codegen
  33:     0x7f45fda0f7e4 - <rustc_middle[8d82ae2353292c40]::ty::context::GlobalCtxt>::enter::<<rustc_interface[6d2e349332c04921]::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core[b8003d5837be85a8]::result::Result<alloc[3dcaa01c400bc274]::boxed::Box<dyn core[b8003d5837be85a8]::any::Any>, rustc_span[e29a588bda90721d]::ErrorGuaranteed>>
  34:     0x7f45fda0ea98 - <rustc_interface[6d2e349332c04921]::queries::Queries>::ongoing_codegen
  35:     0x7f45fda0e29a - <rustc_interface[6d2e349332c04921]::interface::Compiler>::enter::<rustc_driver_impl[d341cd7f64842292]::run_compiler::{closure#1}::{closure#2}, core[b8003d5837be85a8]::result::Result<core[b8003d5837be85a8]::option::Option<rustc_interface[6d2e349332c04921]::queries::Linker>, rustc_span[e29a588bda90721d]::ErrorGuaranteed>>
  36:     0x7f45fda0834f - rustc_span[e29a588bda90721d]::set_source_map::<core[b8003d5837be85a8]::result::Result<(), rustc_span[e29a588bda90721d]::ErrorGuaranteed>, rustc_interface[6d2e349332c04921]::interface::run_compiler<core[b8003d5837be85a8]::result::Result<(), rustc_span[e29a588bda90721d]::ErrorGuaranteed>, rustc_driver_impl[d341cd7f64842292]::run_compiler::{closure#1}>::{closure#0}::{closure#0}>
  37:     0x7f45fda07f68 - <scoped_tls[400ad5b00280e7e0]::ScopedKey<rustc_span[e29a588bda90721d]::SessionGlobals>>::set::<rustc_interface[6d2e349332c04921]::interface::run_compiler<core[b8003d5837be85a8]::result::Result<(), rustc_span[e29a588bda90721d]::ErrorGuaranteed>, rustc_driver_impl[d341cd7f64842292]::run_compiler::{closure#1}>::{closure#0}, core[b8003d5837be85a8]::result::Result<(), rustc_span[e29a588bda90721d]::ErrorGuaranteed>>
  38:     0x7f45fda0757b - std[d7940225b46693d5]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[6d2e349332c04921]::util::run_in_thread_pool_with_globals<rustc_interface[6d2e349332c04921]::interface::run_compiler<core[b8003d5837be85a8]::result::Result<(), rustc_span[e29a588bda90721d]::ErrorGuaranteed>, rustc_driver_impl[d341cd7f64842292]::run_compiler::{closure#1}>::{closure#0}, core[b8003d5837be85a8]::result::Result<(), rustc_span[e29a588bda90721d]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[b8003d5837be85a8]::result::Result<(), rustc_span[e29a588bda90721d]::ErrorGuaranteed>>
  39:     0x7f45fe111921 - <<std[d7940225b46693d5]::thread::Builder>::spawn_unchecked_<rustc_interface[6d2e349332c04921]::util::run_in_thread_pool_with_globals<rustc_interface[6d2e349332c04921]::interface::run_compiler<core[b8003d5837be85a8]::result::Result<(), rustc_span[e29a588bda90721d]::ErrorGuaranteed>, rustc_driver_impl[d341cd7f64842292]::run_compiler::{closure#1}>::{closure#0}, core[b8003d5837be85a8]::result::Result<(), rustc_span[e29a588bda90721d]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[b8003d5837be85a8]::result::Result<(), rustc_span[e29a588bda90721d]::ErrorGuaranteed>>::{closure#1} as core[b8003d5837be85a8]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  40:     0x7f45ffa4fa85 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h3bc15d1a646f1457
                               at /rustc/7908a1d65496b88626e4b7c193c81d777005d6f3/library/alloc/src/boxed.rs:1973:9
  41:     0x7f45ffa4fa85 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb9beb1ea11c0ec94
                               at /rustc/7908a1d65496b88626e4b7c193c81d777005d6f3/library/alloc/src/boxed.rs:1973:9
  42:     0x7f45ffa4fa85 - std::sys::unix::thread::Thread::new::thread_start::hd509204763cabd02
                               at /rustc/7908a1d65496b88626e4b7c193c81d777005d6f3/library/std/src/sys/unix/thread.rs:108:17
  43:     0x7f45fb470bb5 - <unknown>
  44:     0x7f45fb4f2d90 - <unknown>
  45:                0x0 - <unknown>

note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md

note: rustc 1.71.0-nightly (7908a1d65 2023-04-17) running on x86_64-unknown-linux-gnu

note: compiler flags: --crate-type rlib -C opt-level=3 -C embed-bitcode=no

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [optimized_mir] optimizing MIR for `call`
end of query stack
warning: `mocktopus` (lib) generated 1 warning
error: could not compile `mocktopus` (lib); 1 warning emitted

The text was updated successfully, but these errors were encountered:

CosmicHorrorDev · 2023-04-25T21:21:48Z

Apologies. I meant to say that this started with nightly-2023-04-18, not nightly-2023-04-17

Jules-Bertholet · 2023-04-26T00:56:50Z

@rustbot label +F-unboxed_closures +requires-nightly

CosmicHorrorDev added C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Apr 25, 2023

compiler-errors self-assigned this Apr 25, 2023

compiler-errors mentioned this issue Apr 25, 2023

Only unpack tupled args in inliner if we expect args to be unpacked #110833

Merged

rustbot added F-unboxed_closures `#![feature(unboxed_closures)]` requires-nightly This issue requires a nightly compiler in some way. labels Apr 26, 2023

HoKim98 mentioned this issue May 30, 2023

Compiler crashes when compiling on nightly alecmocatta/serde_traitobject#35

Open

lqd mentioned this issue Jun 29, 2023

Could not compile serde_traitobject #113148

Closed

lqd mentioned this issue Aug 2, 2023

cannot compile serde_traitobject #114361

Closed

bors closed this as completed in 60fa393 Aug 4, 2023

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ICE: Closure arguments are not passed as a tuple #110829

ICE: Closure arguments are not passed as a tuple #110829

CosmicHorrorDev commented Apr 25, 2023 •

edited

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CosmicHorrorDev commented Apr 25, 2023 •

edited

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Jules-Bertholet commented Apr 26, 2023

ICE: Closure arguments are not passed as a tuple #110829

ICE: Closure arguments are not passed as a tuple #110829

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CosmicHorrorDev commented Apr 25, 2023 • edited Loading

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CosmicHorrorDev commented Apr 25, 2023 • edited Loading

Jules-Bertholet commented Apr 26, 2023

CosmicHorrorDev commented Apr 25, 2023 •

edited

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CosmicHorrorDev commented Apr 25, 2023 •

edited

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