Fix clippy warnings #943

	name: CI

	on:
	pull_request:
	push:
	branches:
	- master

	env:
	RUSTFLAGS: -Dwarnings

	jobs:
	build_and_test:
	name: Build and test
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, windows-latest, macOS-latest]
	rust: [stable, nightly]

	steps:
	- uses: actions/checkout@master

	- name: Install ${{ matrix.rust }}
	uses: actions-rs/toolchain@v1
	with:
	toolchain: ${{ matrix.rust }}
	override: true

	- name: check
	uses: actions-rs/cargo@v1
	with:
	command: check
	args: --all --bins --examples --features logger

	- name: check avoid-dev-deps
	uses: actions-rs/cargo@v1
	if: matrix.rust == 'nightly'
	with:
	command: check
	args: --all -Z avoid-dev-deps

	- name: check unstable
	uses: actions-rs/cargo@v1
	with:
	command: check
	args: --all --bins --examples --tests --features unstable,logger

	- name: check no-default-features
	uses: actions-rs/cargo@v1
	with:
	command: check
	args: --no-default-features

	- name: check benches
	uses: actions-rs/cargo@v1
	with:
	command: check
	args: --benches

	- name: tests
	uses: actions-rs/cargo@v1
	with:
	command: test
	args: --all --features logger

	- name: tests unstable
	uses: actions-rs/cargo@v1
	with:
	command: test
	args: --all --features unstable,logger

	check_fmt_and_docs:
	name: Checking fmt, clippy, and docs
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@master

	- name: setup
	run: \|
	rustup component add clippy rustfmt
	rustc --version

	- name: clippy
	run: cargo clippy --tests --examples --features logger -- -D warnings

	- name: fmt
	run: cargo fmt --all -- --check

	- name: Docs
	run: cargo doc --no-deps

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