these 3 derivations will be built:
  /nix/store/jjig686a50y8s6bzdl6dc9qn3nb4nkpy-DockerSandboxes-linux-amd64.tar.gz.drv
  /nix/store/6z27szdhhcmxf2wz2pip5gp451g0rlcs-docker-sbx-0.46.0.drv
  /nix/store/sdciik84xxfs9vb3dnq63bk4wkz9h82r-check-docker-sbx.drv