Continuous integration #455

# to view logs

	name: Continuous integration
	on:
	push:
	branches: [main]
	pull_request:
	schedule:
	- cron: "0 0 1,15 * *"

	jobs:
	test:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest]
	rust: [stable]

	steps:
	- name: Install Rust environment
	uses: hecrj/setup-rust-action@v1
	with:
	rust-version: ${{ matrix.rust }}
	- name: Install Cargo plugins
	run: \|
	rustup toolchain install nightly
	cargo install cargo-hack cargo-minimal-versions
	- name: Checkout code
	uses: actions/checkout@v2
	- name: Check formatting
	run: cargo fmt --all -- --check
	- name: Cache dependencies
	uses: actions/cache@v2
	with:
	path: \|
	~/.cargo/registry
	~/.cargo/git
	target
	key: ${{ runner.OS }}-cargo-${{ hashFiles('**/Cargo.lock') }}
	restore-keys: \|
	${{ runner.OS }}-cargo-
	- name: Build library (all feature combinations)
	run: cargo hack --feature-powerset --no-dev-deps build
	- name: Test library (all feature combinations)
	run: cargo hack --feature-powerset test
	- name: Build library (minimal versions)
	run: cargo minimal-versions build

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