add rustc as requirement for cargo install #20

	name: Documentation

	on:
	push:
	branches: [ "main" ]
	workflow_dispatch: {}

	env:
	CARGO_TERM_COLOR: always

	jobs:
	check-msrv:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- run: docker pull yshavit/mdq
	- name: pull cargo-msrv from docker hub
	run: docker pull foresterre/cargo-msrv
	- name: find minimum supported rust version
	id: run-msrv
	run: \|
	set -euo pipefail
	min_version="$(docker run --rm -t -v "$PWD/":/app/ foresterre/cargo-msrv find --no-log --output-format minimal \| tr -d $'\r\n')"
	echo "::notice title=cargo-msrv::$min_version"
	echo "result=$min_version" >> "$GITHUB_OUTPUT"
	- name: check versions in readme
	id: readme-version
	run: \|
	set -euo pipefail
	exit_code=0
	while IFS=: read -r file line_no version_contents; do
	found_rustc_version="${version_contents//rustc >= /}"
	if [[ "$found_rustc_version" == "$MSRV_VERSION" ]]; then
	echo "::notice file=$file,line=$line_no,title=version::✅ $found_rustc_version"
	else
	echo "::error file=$file,line=$line_no,title=version::$found_rustc_version should have been $MSRV_VERSION"
	exit_code=1
	fi
	done <<<"$(grep -HnoE 'rustc >= \S+' README.md)"
	exit "$exit_code"
	env:
	MSRV_VERSION: ${{ steps.run-msrv.outputs.result }}

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