upgraded checkout from v2 to v4; test 1 #3242

	name: CI Pipeline

	on: [push, pull_request]

	jobs:
	check:
	name: Check
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions-rs/cargo@v1
	with:
	command: check

	test:
	name: Test Suite
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Install latest nextest release
	uses: taiki-e/install-action@nextest
	- name: Test with latest nextest release
	uses: actions-rs/cargo@v1
	with:
	command: nextest
	args: run --all-features --all-targets

	fmt:
	name: Rust fmt
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions-rs/cargo@v1
	with:
	command: fmt
	args: --all -- --check

	clippy:
	name: Clippy
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions-rs/cargo@v1
	with:
	command: clippy
	args: --all-targets --all-features -- -D warnings

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