feat: cache #64

	name: checks

	# Note: All jobs (excepting `fmt`) by default use the same channel as defined in `rust-toolchain`.
	# Note: All jobs run only a `ubuntu-latest`, no matrix whatsoever.

	on:
	push:
	branches: [master]
	paths-ignore: ["**.md"]
	pull_request:
	paths-ignore: ["**.md"]
	workflow_dispatch:

	jobs:
	check:
	name: cargo check
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: stable
	override: true
	- uses: actions-rs/cargo@v1
	with:
	command: check

	clippy:
	name: cargo clippy
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: stable
	override: true
	- run: rustup component add clippy
	- uses: actions-rs/cargo@v1
	with:
	command: clippy
	args: -- -D warnings

	test:
	name: cargo test
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: stable
	override: true
	- uses: actions-rs/cargo@v1
	with:
	command: test

	fmt:
	name: cargo fmt
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: nightly
	override: true
	- run: rustup component add rustfmt
	- uses: actions-rs/cargo@v1
	with:
	command: fmt
	args: --all -- --check

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