Use derive to automatically opt in operations #180

	name: ci_linux

	on:
	schedule:
	# * is a special character in YAML so you have to quote this string
	# The final 1 indicates that we want to run this test on Tuesdays, making
	# this a weekly test.
	- cron: '30 2 * * 1'
	pull_request:
	workflow_dispatch:
	push:
	branches: [main]

	env:
	CARGO_TERM_COLOR: always

	jobs:
	build:
	strategy:
	matrix:
	rust-version: [stable, 1.75]

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3

	- name: Setup rust
	run: rustup default ${{ matrix.rust-version }}

	# As new versions of our dependencies come out, they might depend on newer
	# versions of the Rust compiler. When that happens, we'll use this step to
	# lock down the dependency to a version that is known to be compatible with
	# compiler version 1.75.
	- name: Patch dependencies
	if: ${{ matrix.rust-version == 1.75 }}
	run: ./scripts/patch-versions-msrv-1_75.sh

	- name: Build default features
	run: cargo build --workspace
	- name: Test default features
	run: cargo test --workspace

	- name: Test diagram
	run: cargo test --workspace -F=diagram

	- name: Build single_threaded_async
	run: cargo build --features single_threaded_async
	- name: Test single_threaded_async
	run: cargo test --features single_threaded_async

	- name: Build docs
	run: cargo doc

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