these 4 derivations will be built:
  /nix/store/7ffckd2815715zmih66jilm2j57c959g-system-manager.drv
  /nix/store/40vf258ryy4fzr1x0y26nqzcrggi8f0y-closure-info.drv
  /nix/store/9xla6742fnj9d25dywb7hf177jq175az-test-script.py.drv
  /nix/store/g4n4f8cz20iwvb6052nm5zz5yxpdbgzn-container-test-debian-13-ssh.drv