Format with `group_imports=StdExternalCrate` #251

	name: CI

	on: [push, pull_request]

	jobs:
	check:
	runs-on: ubuntu-latest
	steps:
	- name: Install Rust
	uses: hecrj/setup-rust-action@v1
	with:
	rust-version: stable
	- uses: actions/checkout@v2
	- name: Check formatting
	run: cargo fmt -- --check --config group_imports=StdExternalCrate
	- name: Clippy
	run: cargo clippy --all-features -- -D warnings -W clippy::pedantic
	- name: markdownlint
	uses: articulate/actions-markdownlint@v1

	test:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, macOS-latest]
	rust: [stable, 1.66.0]
	steps:
	- name: Install Rust
	uses: hecrj/setup-rust-action@v1
	with:
	rust-version: ${{ matrix.rust }}
	- uses: actions/checkout@v2
	- name: Install Tarpaulin
	if: matrix.os == 'ubuntu-latest' && matrix.rust == 'stable'
	run: cargo install cargo-tarpaulin --version 0.18.0-alpha3
	- name: Build
	run: cargo build --verbose --all-features
	- name: Run tests
	run: cargo test --verbose --all-features
	- name: Generate coverage report
	if: matrix.os == 'ubuntu-latest' && matrix.rust == 'stable'
	run: cargo tarpaulin --out Xml --avoid-cfg-tarpaulin
	- name: Upload coverage to Codecov
	if: matrix.os == 'ubuntu-latest' && matrix.rust == 'stable'
	uses: codecov/codecov-action@v1
	with:
	token: ${{secrets.CODECOV_TOKEN}}

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