Try to get the `mutants` container user going #25

	# Create a container image with the Rust toolchain and the cargo-mutants binary.
	#
	# TODO: Maybe cross build to Arm using `cross` instead of running everything under emulation.
	name: Build and Push Container Image

	env:
	REGISTRY: ghcr.io

	on:
	push:
	branches:
	- main
	- container

	jobs:
	build-and-push:
	runs-on: ubuntu-latest

	permissions:
	contents: read
	packages: write
	attestations: write
	id-token: write

	steps:
	- name: Checkout code
	uses: actions/checkout@v2

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3

	- name: Login to GitHub Container Registry
	uses: docker/login-action@v3
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Extract Docker metadata
	id: meta
	uses: docker/metadata-action@v5
	with:
	images: ${{ env.REGISTRY }}/${{ github.repository }}

	- name: Build and push container image
	id: push
	# --platform linux/amd64,linux/arm64
	run: \|
	docker build --push -t ghcr.io/sourcefrog/cargo-mutants:container .

	# - name: Generate artifact attestation
	# uses: actions/attest-build-provenance@v2
	# with:
	# subject-name: ${{ env.REGISTRY }}/${{ github.repository }}
	# subject-digest: ${{ steps.push.outputs.digest }}
	# push-to-registry: true

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