Add support so that Miri can automatically be quiet when the sysroot is unchanged #115

	name: CI

	on:
	pull_request:
	push:
	branches: ['master']

	env:
	# GHA enables the sparse registry by default; make sure that also works for older nightlies.
	CARGO_UNSTABLE_SPARSE_REGISTRY: 'true'

	jobs:
	test:
	name: Test Suite
	strategy:
	fail-fast: false
	matrix:
	rust:
	- nightly
	# Check a ~3 months old nightly as "oldest supported version"
	- nightly-2023-10-01
	os:
	- ubuntu-latest
	- macos-latest
	- windows-latest
	runs-on: ${{ matrix.os }}
	steps:
	- uses: actions/checkout@v3
	- uses: dtolnay/rust-toolchain@master
	with:
	toolchain: ${{ matrix.rust }}
	components: rust-src
	- name: Run tests
	run: cargo test --locked

	check:
	name: Checks
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- uses: dtolnay/rust-toolchain@master
	with:
	toolchain: 1.75.0
	components: rustfmt, clippy
	- name: rustfmt
	run: cargo fmt --check
	- name: clippy
	run: cargo clippy --all-targets -- -D warnings

Provide feedback