Make loom optional #145

	---
	name: Cargo build and test
	on:
	pull_request:
	paths:
	- .github/workflows/*.yml
	- '*/.rs'
	- Cargo.toml
	- Cargo.lock
	workflow_dispatch:

	env:
	CARGO_TERM_COLOR: always
	RUSTFLAGS: "--deny warnings "
	jobs:
	build-and-test:
	strategy:
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]
	rust: [stable, beta]
	include:
	- os: ubuntu-latest
	rust: nightly
	- os: ubuntu-latest
	rust: 1.65.0
	runs-on: ${{ matrix.os }}
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	- uses: actions-rs/[email protected]
	with:
	toolchain: ${{ matrix.rust }}
	default: true

	- name: Install cargo-hack
	uses: taiki-e/install-action@cargo-hack

	- name: Build
	run: cargo build

	# Run `cargo test` with all combinations of features. Including loom correctness testing
	- name: Test
	run: cargo hack --feature-powerset --exclude-all-features --optional-deps loom test

	# Run `cargo test` but with artificial delay injected into some code paths. This helps
	# running through some hard-to-time code paths. loom testing is not included since it is not
	# compatible nor make any sense together with sleeping.
	- name: Test with artificial delay
	shell: bash
	run: RUSTFLAGS+="--cfg oneshot_test_delay" cargo hack --feature-powerset --exclude-all-features test

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