fix docs.rs build #450

	name: Rust tests

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

	jobs:
	run:
	name: Build
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	os: [macos-latest, ubuntu-latest]
	ocaml-compiler:
	[
	"5.2.0",
	"5.1.1",
	"5.0.0",
	"4.14.1",
	"4.13.1",
	"4.12.1",
	#"4.11.2",
	"4.10.2",
	]

	steps:
	- name: Checkout code
	uses: actions/checkout@v3

	- name: OCaml/Opam cache
	id: ocaml-rs-opam-cache
	uses: actions/cache@v3
	with:
	path: "~/.opam"
	key: ocaml-rs-opam-${{ matrix.ocaml-compiler }}-${{ matrix.os }}

	- name: Use OCaml ${{ matrix.ocaml-compiler }}
	uses: ocaml/setup-ocaml@v3
	with:
	ocaml-compiler: ${{ matrix.ocaml-compiler }}

	- if: matrix.os == 'macos-latest'
	run: brew install zstd
	- if: matrix.os == 'ubuntu-latest'
	run: sudo apt install libzstd-dev

	- name: Install mdbook
	uses: baptiste0928/cargo-install@v2
	with:
	crate: mdbook

	- name: Build
	run: opam exec -- cargo build --example rust --features=link

	- name: Build build
	run: opam exec -- cargo build --package ocaml-build --features=dune

	- name: Run Rust tests
	run: opam exec -- cargo run --example rust --features=link

	- name: Check mdbook
	run: mdbook test doc -L ./target/debug/deps

	- name: Test `no_std`
	run: opam exec -- cargo build --features=no-std

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