cargo: bump MSRV to 1.67.0 #54

	name: ci

	on:
	push:
	branches:
	- '*'
	tags-ignore:
	- '*'
	pull_request:

	permissions:
	contents: read

	jobs:
	test:
	runs-on: ubuntu-latest

	strategy:
	matrix:
	rust: ['stable', 'nightly', '1.67.0']

	steps:
	- uses: actions/checkout@v2

	- name: Set up Rust toolchain
	run: rustup toolchain install ${{ matrix.rust }} --profile minimal

	- name: Run "cargo check"
	uses: actions-rs/cargo@v1
	with:
	toolchain: ${{ matrix.rust }}
	command: check
	args: --workspace --verbose --all-features --tests --examples

	# only run trybuild tests with stable Rust

	- name: Run "cargo test" (with trybuild tests)
	uses: actions-rs/cargo@v1
	if: ${{ matrix.rust == 'stable' }}
	with:
	toolchain: ${{ matrix.rust }}
	command: test
	args: --workspace --verbose --all-features

	- name: Run "cargo test" (without trybuild tests)
	uses: actions-rs/cargo@v1
	if: ${{ matrix.rust != 'stable' }}
	with:
	toolchain: ${{ matrix.rust }}
	command: test
	args: --workspace --verbose --all-features -- --skip try_build

	clippy:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	- name: Set up Rust toolchain
	run: rustup toolchain install stable --profile minimal

	- name: Run "cargo clippy"
	uses: actions-rs/cargo@v1
	with:
	toolchain: stable
	command: clippy
	args: --workspace --verbose --all-features

	rustfmt:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	- name: Set up Rust toolchain
	run: rustup toolchain install nightly --profile minimal --component rustfmt

	- name: Run "cargo fmt"
	uses: actions-rs/cargo@v1
	with:
	toolchain: nightly
	command: fmt
	args: -- --check

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