Bump actions/checkout from 2 to 4 #93

	on:
	push:
	branches: [master, develop]
	pull_request:

	name: Continuous integration

	jobs:

	check:
	name: check
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	build: [msrv, stable, beta, nightly, macos, windows]
	include:
	- build: msrv
	os: ubuntu-latest
	rust: 1.65.0
	- build: stable
	os: ubuntu-latest
	rust: stable
	- build: beta
	os: ubuntu-latest
	rust: beta
	- build: nightly
	os: ubuntu-latest
	rust: nightly
	- build: macos
	os: macos-latest
	rust: stable
	- build: windows
	os: windows-latest
	rust: stable
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: dtolnay/rust-toolchain@master
	with:
	toolchain: ${{ matrix.rust }}
	components: rustfmt
	- run: cargo check --all-targets

	fmt:
	name: format
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: dtolnay/rust-toolchain@nightly
	with:
	components: rustfmt
	- run: cargo fmt -- --check

	clippy:
	name: lint
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: dtolnay/rust-toolchain@nightly
	with:
	components: clippy, rustfmt
	- uses: actions-rs/clippy-check@v1
	with:
	token: ${{ secrets.GITHUB_TOKEN }}
	args: --all-targets

	docs:
	name: docs
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: dtolnay/rust-toolchain@stable
	- run: cargo doc --no-deps

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