Add test to ensure json is correct #149

	name: build

	on:
	push:

	jobs:
	cargo-build:
	name: cargo build
	runs-on: ubuntu-latest
	env:
	CARGO_NET_GIT_FETCH_WITH_CLI: "true"
	RUSTFLAGS: "-D warnings" # fail on warnings
	steps:
	- uses: actions/checkout@v4

	- name: install tools
	run: \|
	rustup show

	- uses: Swatinem/rust-cache@v2
	with:
	shared-key: "build" # share the cache across jobs

	- name: build
	run: \|
	cargo build --release --all-targets --all-features

	# Sadly, `cargo build --locked` isn't enough to check that the lockfile
	# is up to date, as it will happily run even if there are extra entries in
	# there.
	#
	# It does, however, make sure that the file is not updated, which is quite
	# unhelpful.
	- name: ensure lockfile hasn't changed
	run: \|
	if [[ -n "$(git status --porcelain Cargo.lock)" ]]; then
	echo 'The Cargo.lock file was changed!'
	git diff Cargo.lock
	exit 1
	fi

	- name: clippy
	run: \|
	cargo clippy --release --all-targets --all-features

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