Migrate to Rust 2021 #332

	name: CI

	permissions:
	contents: read

	on:
	pull_request:
	push:
	branches:
	- master
	schedule:
	- cron: '0 2 * * 0'

	env:
	CARGO_INCREMENTAL: 0
	CARGO_NET_GIT_FETCH_WITH_CLI: true
	CARGO_NET_RETRY: 10
	CARGO_TERM_COLOR: always
	RUST_BACKTRACE: 1
	RUSTFLAGS: -D warnings
	RUSTDOCFLAGS: -D warnings
	RUSTUP_MAX_RETRIES: 10

	defaults:
	run:
	shell: bash

	jobs:
	test:
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest]
	rust: [nightly, beta, stable]
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust
	run: rustup update ${{ matrix.rust }} && rustup default ${{ matrix.rust }}
	- run: cargo build --all --all-features --all-targets
	- name: Run cargo check (without dev-dependencies to catch missing feature flags)
	if: startsWith(matrix.rust, 'nightly')
	run: cargo check -Z features=dev_dep
	- run: cargo test

	msrv:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install cargo-hack
	uses: taiki-e/install-action@cargo-hack
	- run: cargo hack build --rust-version

	clippy:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust
	run: rustup update stable
	- run: cargo clippy --all-features --all-targets

	fmt:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Rust
	run: rustup update stable
	- run: cargo fmt --all --check

	security_audit:
	permissions:
	checks: write
	contents: read
	issues: write
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	# https://github.com/rustsec/audit-check/issues/2
	- uses: rustsec/audit-check@master
	with:
	token: ${{ secrets.GITHUB_TOKEN }}

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