these 4 derivations will be built:
  /nix/store/109fzhl7jlly1jy02gyv2pzv9hid8nda-test-script.drv
  /nix/store/fn79bvilmfrpfv9m4rffqbq66h54jhx9-driverConfiguration.json.drv
  /nix/store/p7zpfvkx9rxfy64pw2844ivg65zrwamg-nixos-test-driver-systemd-portabled.drv
  /nix/store/vxyykxrn5hh84i8d7gd838qwl6l0n8q4-vm-test-run-systemd-portabled.drv
this path will be fetched (12.9 MiB download, 12.9 MiB unpacked):
  /nix/store/yw0hzxdhjg46v09y4jdjc88039372lbi-demo-img-1.0