Use dtolnay/rust-toolchain instead of actions-rs. #25

	# Based on https://github.com/actions-rs/meta/blob/master/recipes/quickstart.md

	on:
	push:
	branches:
	- main
	- staging
	- trying
	pull_request:

	name: Tests

	jobs:
	no_std:
	name: Ensure no_std
	runs-on: ubuntu-latest
	strategy:
	matrix:
	rust:
	- stable
	- 1.53.0
	steps:
	- uses: actions/checkout@v3
	- uses: dtolnay/rust-toolchain@master
	with:
	toolchain: ${{ matrix.rust }}
	- run: rustc --manifest-path=check_no_std/Cargo.toml -- -C link-arg=-nostartfiles

	check:
	name: Check
	runs-on: ubuntu-latest
	strategy:
	matrix:
	rust:
	- stable
	- 1.53.0
	steps:
	- uses: actions/checkout@v3
	- uses: dtolnay/rust-toolchain@master
	with:
	toolchain: ${{ matrix.rust }}
	- run: cargo check

	test:
	name: Test Suite
	runs-on: ubuntu-latest
	strategy:
	matrix:
	rust:
	- stable
	- 1.53.0
	steps:
	- uses: actions/checkout@v3
	- uses: dtolnay/rust-toolchain@master
	with:
	toolchain: ${{ matrix.rust }}
	- run: cargo test

	fmt:
	name: Rustfmt
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- uses: dtolnay/rust-toolchain@master
	with:
	components: rustfmt
	toolchain: stable
	- run: cargo fmt --all -- --check

	clippy:
	name: Clippy
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- uses: dtolnay/rust-toolchain@master
	with:
	components: clippy
	toolchain: stable
	- run: cargo clippy -- -D warnings

	ci-success:
	name: ci
	if: ${{ success() }}
	needs:
	- no_std
	- check
	- test
	- fmt
	- clippy
	runs-on: ubuntu-20.04
	steps:
	- name: CI succeeded
	run: exit 0

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