Merge pull request #147 from shepmaster/old-msrv #97

	on: [push, pull_request]

	name: Continuous integration

	jobs:
	primary:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	rust:
	- stable

	steps:
	- uses: actions/checkout@v4

	- uses: dtolnay/rust-toolchain@master
	with:
	toolchain: ${{ matrix.rust }}
	components: rustfmt, clippy

	- run: cargo build

	- run: cargo test

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

	- run: cargo clippy -- -D warnings

	secondary:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	rust:
	- beta
	- nightly
	- 1.31.0

	steps:
	- uses: actions/checkout@v4

	- uses: dtolnay/rust-toolchain@master
	with:
	toolchain: ${{ matrix.rust }}

	- run: cargo update

	# This is the version last compatible with 1.31
	- run: \|-
	cargo update -p backtrace --precise 0.3.35
	cargo update -p cc --precise 1.0.37
	cargo update -p libc --precise 0.2.45
	cargo update -p rustc-demangle --precise 0.1.4
	if: matrix.rust == '1.31.0'

	- run: cargo build

	# It's not worth making the tests run on 1.31 -- building the
	# code is enough.
	- run: cargo test
	if: matrix.rust != '1.31.0'

	windows:
	runs-on: windows-latest
	strategy:
	matrix:
	rust:
	- stable

	steps:
	- uses: actions/checkout@v4

	- uses: dtolnay/rust-toolchain@master
	with:
	toolchain: ${{ matrix.rust }}

	- run: cargo build

	- run: cargo test

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