Mutants #3

	name: Mutants

	on:
	workflow_dispatch: # i.e. manually

	# see https://matklad.github.io/2021/09/04/fast-rust-builds.html
	env:
	CARGO_TERM_COLOR: always
	CARGO_INCREMENTAL: 0
	CARGO_NET_RETRY: 10
	CI: 1
	RUST_BACKTRACE: short
	RUSTUP_MAX_RETRIES: 10

	jobs:
	tests:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: true
	steps:
	- uses: actions/checkout@v3
	- uses: dtolnay/rust-toolchain@master
	with:
	toolchain: stable
	- uses: swatinem/rust-cache@v2
	- name: Show version
	run: \|
	rustup show
	cargo --version
	rustc --version
	- name: Test
	run: >
	cargo test --all-features --features fail/failpoints --
	--include-ignored

	cargo-mutants:
	runs-on: ubuntu-latest
	needs: [tests]
	strategy:
	# We want to see all the missed mutants so don't fail fast.
	fail-fast: false
	matrix:
	shard: [0, 1, 2, 3]
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	- uses: taiki-e/install-action@v2
	name: Install cargo-mutants using install-action
	with:
	tool: cargo-mutants
	- uses: dtolnay/rust-toolchain@master
	with:
	toolchain: stable
	- uses: swatinem/rust-cache@v2
	- name: Run mutant tests
	# Can't use --all-features here because BLAKE2 SIMD needs unstable...
	# Don't use the S3 features because they require AWS credentials for realistic
	# testing.
	run: >
	cargo mutants --no-shuffle -vV --cargo-arg --no-default-features
	--shard ${{ matrix.shard }}/4 -- --features fail/failpoints
	- name: Archive results
	uses: actions/upload-artifact@v3
	if: always()
	with:
	name: mutation-report
	path: mutants.out

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