these 4 derivations will be built:
  /nix/store/javlbai9cgxf9cjjpp35hjs314cykip0-docker-image-packages-manifest.drv
  /nix/store/sgxq1rbqarwzhi83lhq4gy0ky0sq46jg-docker-image-sources.drv
  /nix/store/217fkxqb887hzzpkjxynyrkg5fddl7rg-docker-image-inputs.drv
  /nix/store/3lr802z2r56lvgzfpr8aa8ikm00y4wc1-docker-image-inputs-hash.drv