ci: use patched version of cargo-check-external-types to fix CI failu… #10846

Workflow file for this run

	on:
	push:
	branches: ["master", "tokio-*.x"]
	pull_request:
	branches: ["master", "tokio-*.x"]

	name: CI

	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.sha }}
	cancel-in-progress: true

	env:
	RUSTFLAGS: -Dwarnings
	RUST_BACKTRACE: 1
	RUSTUP_WINDOWS_PATH_ADD_BIN: 1
	# Change to specific Rust release to pin
	rust_stable: stable
	rust_nightly: nightly-2024-05-05
	# Pin a specific miri version
	rust_miri_nightly: nightly-2024-09-19
	rust_clippy: '1.77'
	# When updating this, also update:
	# - README.md
	# - tokio/README.md
	# - CONTRIBUTING.md
	# - tokio/Cargo.toml
	# - tokio-util/Cargo.toml
	# - tokio-test/Cargo.toml
	# - tokio-stream/Cargo.toml
	rust_min: '1.70'

	defaults:
	run:
	shell: bash

	permissions:
	contents: read

	jobs:
	# Depends on all actions that are required for a "successful" CI run.
	tests-pass:
	name: all systems go
	runs-on: ubuntu-latest
	needs:
	- test-tokio-full
	- test-workspace-all-features
	- test-integration-tests-per-feature
	- test-parking_lot
	- test-tracing-instrumentation
	- valgrind
	- test-unstable
	- miri
	- asan
	- cross-check
	- cross-check-tier3
	- cross-test-with-parking_lot
	- cross-test-without-parking_lot
	- no-atomic-u64-test
	- no-atomic-u64-check
	- features
	- minrust
	- minimal-versions
	- fmt
	- clippy
	- docs
	- loom-compile
	- check-readme
	- test-hyper
	- test-quinn
	- x86_64-fortanix-unknown-sgx
	- check-redox
	- wasm32-unknown-unknown
	- wasm32-wasip1
	- check-external-types
	- check-fuzzing
	- check-unstable-mt-counters
	- check-spelling
	steps:
	- run: exit 0

	# Basic actions that must pass before we kick off more expensive tests.
	basics:
	name: basic checks
	runs-on: ubuntu-latest
	needs:
	- clippy
	- fmt
	- docs
	- minrust
	steps:
	- run: exit 0

	test-tokio-full:
	needs: basics
	name: test tokio full
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os:
	- windows-latest
	- ubuntu-latest
	- macos-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_stable }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_stable }}
	- name: Install cargo-nextest
	uses: taiki-e/install-action@v2
	with:
	tool: cargo-nextest

	- uses: Swatinem/rust-cache@v2

	# Run `tokio` with `full` features. This excludes testing utilities which
	# can alter the runtime behavior of Tokio.
	- name: test tokio full
	run: \|
	set -euxo pipefail
	cargo nextest run --features full
	cargo test --doc --features full
	working-directory: tokio

	test-workspace-all-features:
	needs: basics
	name: test all crates in the workspace with all features
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os:
	- windows-latest
	- ubuntu-latest
	- macos-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_stable }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_stable }}
	- name: Install cargo-nextest
	uses: taiki-e/install-action@v2
	with:
	tool: cargo-nextest

	- uses: Swatinem/rust-cache@v2

	# Test all crates in the workspace with all features.
	- name: test all --all-features
	run: \|
	set -euxo pipefail
	cargo nextest run --workspace --all-features
	cargo test --doc --workspace --all-features

	test-workspace-all-features-panic-abort:
	needs: basics
	name: test all crates in the workspace with all features and panic=abort
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os:
	- windows-latest
	- ubuntu-latest
	- macos-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_nightly }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_nightly }}
	- name: Install cargo-nextest
	uses: taiki-e/install-action@v2
	with:
	tool: cargo-nextest

	- uses: Swatinem/rust-cache@v2

	- name: test all --all-features panic=abort
	run: \|
	set -euxo pipefail
	RUSTFLAGS="$RUSTFLAGS -C panic=abort -Zpanic-abort-tests" cargo nextest run --workspace --exclude tokio-macros --exclude tests-build --all-features --tests

	test-integration-tests-per-feature:
	needs: basics
	name: Run integration tests for each feature
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os:
	- windows-latest
	- ubuntu-latest
	- macos-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_stable }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_stable }}
	- name: Install cargo-hack
	uses: taiki-e/install-action@v2
	with:
	tool: cargo-hack

	- uses: Swatinem/rust-cache@v2

	# Run integration tests for each feature
	- name: test tests-integration --each-feature
	run: cargo hack test --each-feature
	working-directory: tests-integration

	# Run macro build tests
	- name: test tests-build --each-feature
	run: cargo hack test --each-feature
	working-directory: tests-build

	# Check benchmarks.
	- name: Check benches
	run: cargo check --benches
	working-directory: benches
	if: startsWith(matrix.os, 'ubuntu')

	test-parking_lot:
	# The parking_lot crate has a feature called send_guard which changes when
	# some of its types are Send. Tokio has some measures in place to prevent
	# this from affecting when Tokio types are Send, and this test exists to
	# ensure that those measures are working.
	#
	# This relies on the potentially affected Tokio type being listed in
	# `tokio/tokio/tests/async_send_sync.rs`.
	name: compile tests with parking lot send guards
	needs: basics
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_stable }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_stable }}

	- name: Enable parking_lot send_guard feature
	# Inserts the line "plsend = ["parking_lot/send_guard"]" right after [features]
	run: sed -i '/\[features\]/a plsend = ["parking_lot/send_guard"]' tokio/Cargo.toml

	- uses: Swatinem/rust-cache@v2
	- name: Check tests with all features enabled
	run: cargo check --workspace --all-features --tests

	test-tracing-instrumentation:
	# These tests use the as-yet unpublished `tracing-mock` crate to test the
	# tracing instrumentation present in Tokio. As such they are placed in
	# their own test crate outside of the workspace.
	needs: basics
	name: test tokio instrumentation
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_stable }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_stable }}
	- name: Install cargo-nextest
	uses: taiki-e/install-action@v2
	with:
	tool: cargo-nextest

	- uses: Swatinem/rust-cache@v2

	- name: test tracing-instrumentation
	run: \|
	set -euxo pipefail
	cargo nextest run
	working-directory: tokio/tests/tracing-instrumentation
	env:
	RUSTFLAGS: --cfg tokio_unstable -Dwarnings

	valgrind:
	name: valgrind
	needs: basics
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_stable }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_stable }}

	- name: Install Valgrind
	uses: taiki-e/install-action@valgrind

	- uses: Swatinem/rust-cache@v2
	# Compile tests
	- name: cargo build test-mem
	run: cargo build --features rt-net --bin test-mem
	working-directory: tests-integration

	# Run with valgrind
	- name: Run valgrind test-mem
	run: valgrind --error-exitcode=1 --leak-check=full --show-leak-kinds=all --fair-sched=yes ./target/debug/test-mem

	# Compile tests
	- name: cargo build test-process-signal
	run: cargo build --features rt-process-signal --bin test-process-signal
	working-directory: tests-integration

	# Run with valgrind
	- name: Run valgrind test-process-signal
	run: valgrind --error-exitcode=1 --leak-check=full --show-leak-kinds=all --fair-sched=yes ./target/debug/test-process-signal

	test-unstable:
	name: test tokio full --unstable
	needs: basics
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	include:
	- os: windows-latest
	- os: ubuntu-latest
	- os: macos-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_stable }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_stable }}

	- name: Install cargo-nextest
	uses: taiki-e/install-action@v2
	with:
	tool: cargo-nextest

	- uses: Swatinem/rust-cache@v2
	# Run `tokio` with "unstable" cfg flag.
	- name: test tokio full --cfg unstable
	run: \|
	set -euxo pipefail
	cargo nextest run --all-features
	cargo test --doc --all-features
	working-directory: tokio
	env:
	RUSTFLAGS: --cfg tokio_unstable -Dwarnings
	# in order to run doctests for unstable features, we must also pass
	# the unstable cfg to RustDoc
	RUSTDOCFLAGS: --cfg tokio_unstable

	test-unstable-taskdump:
	name: test tokio full --unstable --taskdump
	needs: basics
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	include:
	- os: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_stable }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_stable }}

	- name: Install cargo-nextest
	uses: taiki-e/install-action@v2
	with:
	tool: cargo-nextest

	- uses: Swatinem/rust-cache@v2
	# Run `tokio` with "unstable" and "taskdump" cfg flags.
	- name: test tokio full --cfg unstable --cfg taskdump
	run: \|
	set -euxo pipefail
	cargo nextest run --all-features
	cargo test --doc --all-features
	working-directory: tokio
	env:
	RUSTFLAGS: --cfg tokio_unstable --cfg tokio_taskdump -Dwarnings
	# in order to run doctests for unstable features, we must also pass
	# the unstable cfg to RustDoc
	RUSTDOCFLAGS: --cfg tokio_unstable --cfg tokio_taskdump

	check-unstable-mt-counters:
	name: check tokio full --internal-mt-counters
	needs: basics
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	include:
	- os: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_stable }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_stable }}
	- name: Install cargo-nextest
	uses: taiki-e/install-action@v2
	with:
	tool: cargo-nextest
	- uses: Swatinem/rust-cache@v2
	# Run `tokio` with "unstable" and "taskdump" cfg flags.
	- name: check tokio full --cfg unstable --cfg internal-mt-counters
	run: \|
	set -euxo pipefail
	cargo nextest run --all-features
	cargo test --doc --all-features
	working-directory: tokio
	env:
	RUSTFLAGS: --cfg tokio_unstable --cfg tokio_internal_mt_counters -Dwarnings
	# in order to run doctests for unstable features, we must also pass
	# the unstable cfg to RustDoc
	RUSTDOCFLAGS: --cfg tokio_unstable --cfg tokio_internal_mt_counters

	miri:
	name: miri
	needs: basics
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_miri_nightly }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_miri_nightly }}
	components: miri
	- name: Install cargo-nextest
	uses: taiki-e/install-action@v2
	with:
	tool: cargo-nextest
	- uses: Swatinem/rust-cache@v2
	- name: miri
	run: \|
	cargo miri nextest run --features full --lib --tests --no-fail-fast
	working-directory: tokio
	env:
	MIRIFLAGS: -Zmiri-disable-isolation -Zmiri-strict-provenance -Zmiri-retag-fields

	asan:
	name: asan
	needs: basics
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install llvm
	# Required to resolve symbols in sanitizer output
	run: sudo apt-get install -y llvm
	- name: Install Rust ${{ env.rust_nightly }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_nightly }}

	- uses: Swatinem/rust-cache@v2
	- name: asan
	run: cargo test --workspace --all-features --target x86_64-unknown-linux-gnu --tests -- --test-threads 1 --nocapture
	env:
	RUSTFLAGS: -Z sanitizer=address --cfg tokio_no_tuning_tests
	# Ignore `trybuild` errors as they are irrelevant and flaky on nightly
	TRYBUILD: overwrite

	semver:
	name: semver
	needs: basics
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Check semver
	uses: obi1kenobi/cargo-semver-checks-action@v2
	with:
	rust-toolchain: ${{ env.rust_stable }}
	release-type: minor

	cross-check:
	name: cross-check
	needs: basics
	runs-on: ubuntu-latest
	strategy:
	matrix:
	target:
	- powerpc-unknown-linux-gnu
	- powerpc64-unknown-linux-gnu
	- arm-linux-androideabi
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_stable }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_stable }}
	target: ${{ matrix.target }}

	- uses: Swatinem/rust-cache@v2
	- run: cargo check --workspace --all-features --target ${{ matrix.target }}
	env:
	RUSTFLAGS: --cfg tokio_unstable -Dwarnings

	cross-check-tier3:
	name: cross-check-tier3
	needs: basics
	runs-on: ubuntu-latest
	strategy:
	matrix:
	target:
	- name: armv7-sony-vita-newlibeabihf
	exclude_features: "process,signal,rt-process-signal,full"
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_nightly }}
	uses: dtolnay/rust-toolchain@nightly
	with:
	toolchain: ${{ env.rust_nightly }}
	components: rust-src
	- name: Install cargo-hack
	uses: taiki-e/install-action@v2
	with:
	tool: cargo-hack
	- uses: Swatinem/rust-cache@v2
	- run: cargo hack check -Zbuild-std --workspace --each-feature --target ${{ matrix.target.name }} --exclude-features "${{ matrix.target.exclude_features }}"
	env:
	RUSTFLAGS: --cfg tokio_unstable -Dwarnings

	cross-test-with-parking_lot:
	needs: basics
	runs-on: ubuntu-latest
	strategy:
	matrix:
	include:
	- target: i686-unknown-linux-gnu
	rustflags: --cfg tokio_taskdump
	- target: armv5te-unknown-linux-gnueabi
	- target: armv7-unknown-linux-gnueabihf
	- target: aarch64-unknown-linux-gnu
	rustflags: --cfg tokio_taskdump
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust stable
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_stable }}
	target: ${{ matrix.target }}

	- name: Install cargo-nextest
	uses: taiki-e/install-action@v2
	with:
	tool: cargo-nextest

	- uses: taiki-e/setup-cross-toolchain-action@v1
	with:
	target: ${{ matrix.target }}
	qemu: '7.2'

	- uses: Swatinem/rust-cache@v2
	- name: Tests run with all features (including parking_lot)
	run: \|
	set -euxo pipefail
	cargo nextest run -p tokio --all-features --target ${{ matrix.target }}
	cargo test --doc -p tokio --all-features --target ${{ matrix.target }}
	env:
	RUST_TEST_THREADS: 1
	RUSTFLAGS: --cfg tokio_unstable -Dwarnings --cfg tokio_no_tuning_tests ${{ matrix.rustflags }}

	cross-test-without-parking_lot:
	needs: basics
	runs-on: ubuntu-latest
	strategy:
	matrix:
	include:
	- target: i686-unknown-linux-gnu
	rustflags: --cfg tokio_taskdump
	- target: armv5te-unknown-linux-gnueabi
	- target: armv7-unknown-linux-gnueabihf
	- target: aarch64-unknown-linux-gnu
	rustflags: --cfg tokio_taskdump
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust stable
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_stable }}
	target: ${{ matrix.target }}

	- name: Install cargo-nextest
	uses: taiki-e/install-action@v2
	with:
	tool: cargo-nextest

	- uses: taiki-e/setup-cross-toolchain-action@v1
	with:
	target: ${{ matrix.target }}
	qemu: '7.2'

	- name: Remove `parking_lot` from `full` feature
	run: sed -i '0,/parking_lot/{/parking_lot/d;}' tokio/Cargo.toml

	- uses: Swatinem/rust-cache@v2
	# The `tokio_no_parking_lot` cfg is here to ensure the `sed` above does not silently break.
	- name: Tests run with all features (without parking_lot)
	run: \|
	set -euxo pipefail
	cargo nextest run -p tokio --features full,test-util --target ${{ matrix.target }}
	cargo test --doc -p tokio --features full,test-util --target ${{ matrix.target }}
	env:
	RUST_TEST_THREADS: 1
	RUSTFLAGS: --cfg tokio_unstable -Dwarnings --cfg tokio_no_parking_lot --cfg tokio_no_tuning_tests ${{ matrix.rustflags }}

	# See https://github.com/tokio-rs/tokio/issues/5187
	no-atomic-u64-test:
	name: Test tokio --all-features on i686-unknown-linux-gnu without AtomicU64
	needs: basics
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_nightly }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_nightly }}
	components: rust-src

	- name: Install cargo-nextest
	uses: taiki-e/install-action@v2
	with:
	tool: cargo-nextest

	- uses: taiki-e/setup-cross-toolchain-action@v1
	with:
	target: i686-unknown-linux-gnu
	qemu: '7.2'

	- uses: Swatinem/rust-cache@v2
	- name: test tokio --all-features
	run: \|
	cargo nextest run -Zbuild-std --target target-specs/i686-unknown-linux-gnu.json -p tokio --all-features
	cargo test --doc -Zbuild-std --target target-specs/i686-unknown-linux-gnu.json -p tokio --all-features
	env:
	RUST_TEST_THREADS: 1
	RUSTFLAGS: --cfg tokio_unstable --cfg tokio_taskdump -Dwarnings --cfg tokio_no_tuning_tests

	no-atomic-u64-check:
	name: Check tokio --feature-powerset --depth 2 on i686-unknown-linux-gnu without AtomicU64
	needs: basics
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_nightly }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_nightly }}
	components: rust-src
	- name: Install cargo-hack
	uses: taiki-e/install-action@v2
	with:
	tool: cargo-hack

	- uses: Swatinem/rust-cache@v2

	# https://github.com/tokio-rs/tokio/pull/5356
	# https://github.com/tokio-rs/tokio/issues/5373
	- name: Check
	run: cargo hack check -Zbuild-std --target target-specs/i686-unknown-linux-gnu.json -p tokio --feature-powerset --depth 2 --keep-going
	env:
	RUSTFLAGS: --cfg tokio_unstable --cfg tokio_taskdump -Dwarnings

	features:
	name: features ${{ matrix.name }}
	needs: basics
	runs-on: ubuntu-latest
	strategy:
	matrix:
	include:
	- { name: "", rustflags: "" }
	# Try with unstable feature flags
	- { name: "--unstable", rustflags: "--cfg tokio_unstable -Dwarnings" }
	# Try with unstable and taskdump feature flags
	- { name: "--unstable --taskdump", rustflags: "--cfg tokio_unstable -Dwarnings --cfg tokio_taskdump" }
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_nightly }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_nightly }}
	target: ${{ matrix.target }}
	- name: Install cargo-hack
	uses: taiki-e/install-action@cargo-hack

	- uses: Swatinem/rust-cache@v2
	- name: check --feature-powerset ${{ matrix.name }}
	run: cargo hack check --all --feature-powerset --depth 2 --keep-going
	env:
	RUSTFLAGS: ${{ matrix.rustflags }}

	minrust:
	name: minrust
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_min }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_min }}
	- uses: Swatinem/rust-cache@v2
	- name: "check --workspace --all-features"
	run: cargo check --workspace --all-features
	env:
	RUSTFLAGS: "" # remove -Dwarnings

	minimal-versions:
	name: minimal-versions
	needs: basics
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_nightly }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_nightly }}
	- name: Install cargo-hack
	uses: taiki-e/install-action@cargo-hack

	- uses: Swatinem/rust-cache@v2
	- name: "check --all-features -Z minimal-versions"
	run: \|
	# Remove dev-dependencies from Cargo.toml to prevent the next `cargo update`
	# from determining minimal versions based on dev-dependencies.
	cargo hack --remove-dev-deps --workspace
	# Update Cargo.lock to minimal version dependencies.
	cargo update -Z minimal-versions
	cargo hack check --all-features --ignore-private
	- name: "check --all-features --unstable -Z minimal-versions"
	env:
	RUSTFLAGS: --cfg tokio_unstable --cfg tokio_taskdump -Dwarnings
	run: \|
	# Remove dev-dependencies from Cargo.toml to prevent the next `cargo update`
	# from determining minimal versions based on dev-dependencies.
	cargo hack --remove-dev-deps --workspace
	# Update Cargo.lock to minimal version dependencies.
	cargo update -Z minimal-versions
	cargo hack check --all-features --ignore-private

	fmt:
	name: fmt
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_stable }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_stable }}
	components: rustfmt
	- uses: Swatinem/rust-cache@v2
	# Check fmt
	- name: "rustfmt --check"
	# Workaround for rust-lang/cargo#7732
	run: \|
	if ! rustfmt --check --edition 2021 $(git ls-files '*.rs'); then
	printf "Please run \`rustfmt --edition 2021 \$(git ls-files '*.rs')\` to fix rustfmt errors.\nSee CONTRIBUTING.md for more details.\n" >&2
	exit 1
	fi

	clippy:
	name: clippy
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_clippy }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_clippy }}
	components: clippy
	- uses: Swatinem/rust-cache@v2
	# Run clippy
	- name: "clippy --all"
	run: cargo clippy --all --tests --all-features --no-deps

	docs:
	name: docs
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_nightly }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_nightly }}
	- uses: Swatinem/rust-cache@v2
	- name: "doc --lib --all-features"
	run: \|
	cargo doc --lib --no-deps --all-features --document-private-items
	env:
	RUSTFLAGS: --cfg docsrs --cfg tokio_unstable --cfg tokio_taskdump
	RUSTDOCFLAGS: --cfg docsrs --cfg tokio_unstable --cfg tokio_taskdump -Dwarnings

	loom-compile:
	name: build loom tests
	needs: basics
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_stable }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_stable }}
	- uses: Swatinem/rust-cache@v2
	- name: build --cfg loom
	run: cargo test --no-run --lib --features full
	working-directory: tokio
	env:
	RUSTFLAGS: --cfg loom --cfg tokio_unstable -Dwarnings

	check-readme:
	name: Check README
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Verify that both READMEs are identical
	run: diff README.md tokio/README.md

	- name: Verify that Tokio version is up to date in README
	working-directory: tokio
	run: grep -q "$(sed '/^version = /!d' Cargo.toml \| head -n1)" README.md

	test-hyper:
	name: Test hyper
	needs: basics
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os:
	- windows-latest
	- ubuntu-latest
	- macos-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_stable }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_stable }}

	- name: Clone hyper
	run: git clone https://github.com/hyperium/hyper.git

	- name: Checkout the latest release because HEAD maybe contains breakage.
	run: \|
	set -x
	tag=$(git describe --abbrev=0 --tags)
	git checkout "${tag}"
	working-directory: hyper

	- name: Patch hyper to use tokio from this repository
	run: \|
	set -x
	echo '[workspace]' >>Cargo.toml
	echo '[patch.crates-io]' >>Cargo.toml
	echo 'tokio = { path = "../tokio" }' >>Cargo.toml
	echo 'tokio-util = { path = "../tokio-util" }' >>Cargo.toml
	echo 'tokio-stream = { path = "../tokio-stream" }' >>Cargo.toml
	echo 'tokio-test = { path = "../tokio-test" }' >>Cargo.toml
	git diff
	working-directory: hyper

	- uses: Swatinem/rust-cache@v2
	with:
	# The cargo workspaces and target directory configuration.
	# These entries are separated by newlines and have the form
	# `$workspace -> $target`. The `$target` part is treated as a directory
	# relative to the `$workspace` and defaults to "target" if not explicitly given.
	# default: ". -> target"
	workspaces: "./hyper"

	- name: Test hyper
	run: cargo test --features full
	working-directory: hyper

	test-quinn:
	name: Test Quinn
	needs: basics
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os:
	- windows-latest
	- ubuntu-latest
	- macos-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_stable }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_stable }}

	- name: Clone Quinn
	run: git clone https://github.com/quinn-rs/quinn.git

	- name: Checkout the latest release because HEAD maybe contains breakage.
	run: \|
	set -x
	tag=$(git describe --abbrev=0 --tags)
	git checkout "${tag}"
	working-directory: quinn

	- name: Patch Quinn to use tokio from this repository
	run: \|
	set -x
	echo '[patch.crates-io]' >>Cargo.toml
	echo 'tokio = { path = "../tokio" }' >>Cargo.toml
	git diff
	working-directory: quinn

	- uses: Swatinem/rust-cache@v2
	with:
	# The cargo workspaces and target directory configuration.
	# These entries are separated by newlines and have the form
	# `$workspace -> $target`. The `$target` part is treated as a directory
	# relative to the `$workspace` and defaults to "target" if not explicitly given.
	# default: ". -> target"
	workspaces: "./quinn"

	- name: Test Quinn
	working-directory: quinn
	env:
	RUSTFLAGS: ""
	run: cargo test

	x86_64-fortanix-unknown-sgx:
	name: build tokio for x86_64-fortanix-unknown-sgx
	needs: basics
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_nightly }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_nightly }}
	target: x86_64-fortanix-unknown-sgx
	- uses: Swatinem/rust-cache@v2
	# NOTE: Currently the only test we can run is to build tokio with rt and sync features.
	- name: build tokio
	run: cargo build --target x86_64-fortanix-unknown-sgx --features rt,sync
	working-directory: tokio

	check-redox:
	name: build tokio for redox-os
	needs: basics
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_nightly }}
	uses: dtolnay/rust-toolchain@master
	with:
	toolchain: ${{ env.rust_nightly }}
	target: x86_64-unknown-redox
	- name: check tokio on redox
	run: cargo check --target x86_64-unknown-redox --all-features
	working-directory: tokio

	wasm32-unknown-unknown:
	name: test tokio for wasm32-unknown-unknown
	needs: basics
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust 1.81
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: 1.81
	- name: Install wasm-pack
	uses: taiki-e/install-action@wasm-pack

	- uses: Swatinem/rust-cache@v2
	- name: test tokio
	run: wasm-pack test --node -- --features "macros sync"
	working-directory: tokio

	wasm32-wasip1:
	name: ${{ matrix.target }}
	needs: basics
	runs-on: ubuntu-latest
	strategy:
	matrix:
	target:
	- wasm32-wasip1
	- wasm32-wasip1-threads
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_stable }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_stable }}
	targets: ${{ matrix.target }}

	# Install dependencies
	- name: Install cargo-hack, wasmtime, and cargo-wasi
	uses: taiki-e/install-action@v2
	with:
	tool: cargo-hack,wasmtime,cargo-wasi

	- uses: Swatinem/rust-cache@v2
	- name: WASI test tokio full
	run: cargo test -p tokio --target ${{ matrix.target }} --features full
	env:
	CARGO_TARGET_WASM32_WASIP1_RUNNER: "wasmtime run --"
	CARGO_TARGET_WASM32_WASIP1_THREADS_RUNNER: "wasmtime run -W bulk-memory=y -W threads=y -S threads=y --"
	RUSTFLAGS: --cfg tokio_unstable -Dwarnings -C target-feature=+atomics,+bulk-memory -C link-args=--max-memory=67108864

	- name: WASI test tokio-util full
	run: cargo test -p tokio-util --target ${{ matrix.target }} --features full
	env:
	CARGO_TARGET_WASM32_WASIP1_RUNNER: "wasmtime run --"
	CARGO_TARGET_WASM32_WASIP1_THREADS_RUNNER: "wasmtime run -W bulk-memory=y -W threads=y -S threads=y --"
	RUSTFLAGS: --cfg tokio_unstable -Dwarnings -C target-feature=+atomics,+bulk-memory -C link-args=--max-memory=67108864

	- name: WASI test tokio-stream
	run: cargo test -p tokio-stream --target ${{ matrix.target }} --features time,net,io-util,sync
	env:
	CARGO_TARGET_WASM32_WASIP1_RUNNER: "wasmtime run --"
	CARGO_TARGET_WASM32_WASIP1_THREADS_RUNNER: "wasmtime run -W bulk-memory=y -W threads=y -S threads=y --"
	RUSTFLAGS: --cfg tokio_unstable -Dwarnings -C target-feature=+atomics,+bulk-memory -C link-args=--max-memory=67108864

	- name: test tests-integration --features wasi-rt
	# TODO: this should become: `cargo hack wasi test --each-feature`
	run: cargo wasi test --test rt_yield --features wasi-rt
	if: matrix.target == 'wasm32-wasip1'
	working-directory: tests-integration

	- name: test tests-integration --features wasi-threads-rt
	run: cargo test --target ${{ matrix.target }} --features wasi-threads-rt
	if: matrix.target == 'wasm32-wasip1-threads'
	working-directory: tests-integration
	env:
	CARGO_TARGET_WASM32_WASIP1_THREADS_RUNNER: "wasmtime run -W bulk-memory=y -W threads=y -S threads=y --"
	RUSTFLAGS: --cfg tokio_unstable -Dwarnings -C target-feature=+atomics,+bulk-memory -C link-args=--max-memory=67108864

	check-external-types:
	name: check-external-types (${{ matrix.os }})
	needs: basics
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os:
	- windows-latest
	- ubuntu-latest
	rust:
	# `check-external-types` requires a specific Rust nightly version. See
	# the README for details: https://github.com/awslabs/cargo-check-external-types
	- nightly-2024-06-30
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ matrix.rust }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ matrix.rust }}
	- uses: Swatinem/rust-cache@v2
	- name: Install cargo-check-external-types
	uses: taiki-e/cache-cargo-install-action@v1
	with:
	tool: cargo-check-external-types
	# TODO: install from crates.io once https://github.com/awslabs/cargo-check-external-types/pull/183 merged and released.
	git: https://github.com/taiki-e/cargo-check-external-types.git
	rev: 83a8d29
	- name: check-external-types
	run: cargo check-external-types --all-features
	working-directory: tokio

	check-unexpected-lints-cfgs:
	name: check unexpected lints and cfgs
	needs: basics
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_nightly }}
	uses: dtolnay/rust-toolchain@master
	with:
	toolchain: ${{ env.rust_nightly }}
	- name: don't allow warnings
	run: sed -i '/#!\[allow(unknown_lints, unexpected_cfgs)\]/d' /src/lib.rs /tests/*.rs
	- name: check for unknown lints and cfgs
	run: cargo check --all-features --tests
	env:
	RUSTFLAGS: -Dwarnings --check-cfg=cfg(loom,tokio_unstable,tokio_taskdump,fuzzing,mio_unsupported_force_poll_poll,tokio_internal_mt_counters,fs,tokio_no_parking_lot,tokio_no_tuning_tests) -Funexpected_cfgs -Funknown_lints

	check-fuzzing:
	name: check-fuzzing
	needs: basics
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_nightly }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_nightly }}
	- uses: Swatinem/rust-cache@v2
	- name: Install cargo-fuzz
	run: cargo install cargo-fuzz
	- name: Check /tokio/
	run: cargo fuzz check --all-features
	working-directory: tokio
	- name: Check /tokio-stream/
	run: cargo fuzz check --all-features
	working-directory: tokio-stream

	check-spelling:
	name: check-spelling
	needs: basics
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust ${{ env.rust_stable }}
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ env.rust_stable }}
	- name: Install cargo-spellcheck
	uses: taiki-e/install-action@v2
	with:
	tool: cargo-spellcheck
	- uses: actions/checkout@v4
	- name: Make sure dictionary words are sorted and unique
	run: \|
	# `sed` removes the first line (number of words) and
	# the last line (new line).
	#
	# `sort` makes sure everything in between is sorted
	# and contains no duplicates.
	#
	# Since `sort` is sensitive to locale, we set it
	# using LC_ALL to en_US.UTF8 to be consistent in different
	# environments.

	(
	sed '1d; $d' spellcheck.dic \| LC_ALL=en_US.UTF8 sort -uc
	) \|\| {
	echo "Dictionary is not in sorted order. Correct order is:"
	LC_ALL=en_US.UTF8 sort -u <(sed '1d; $d' spellcheck.dic)
	false
	}
	- name: Run cargo-spellcheck
	run: cargo spellcheck --code 1

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