ci: use unicode-width 0.1.12 on msrv job #20

	name: CI

	on: [push, pull_request]

	env:
	RUSTFLAGS: -Dwarnings

	jobs:
	fmt_and_docs:
	name: Check fmt & build docs
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v1
	- name: Install Rust
	uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: stable
	components: rustfmt
	override: true
	- name: rustfmt
	run: cargo fmt --all -- --check
	- name: docs
	run: cargo doc --no-deps

	build_and_test:
	name: Build & Test
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, macOS-latest, windows-latest]

	steps:
	- uses: actions/checkout@v1
	- name: Install Rust
	uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: stable
	components: clippy
	override: true
	- name: Clippy
	run: cargo clippy --all -- -D warnings
	- name: Run tests
	run: cargo test --all --verbose

	msrv:
	name: Build & Test on MSRV
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, macOS-latest, windows-latest]

	steps:
	- uses: actions/checkout@v1
	- name: Install Rust
	uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: 1.56.0
	components: clippy
	override: true
	- name: Pin unicode-width to 0.1.12
	run: cargo update --package unicode-width --precise 0.1.12
	- name: Clippy
	run: cargo clippy --all -- -D warnings
	- name: Run tests
	run: cargo test --all --verbose

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