these 6 derivations will be built:
  /nix/store/yyxnn2r6a509avm1svwcbd8y80k61hmq-libguestfs-1.56.2.drv
  /nix/store/7d8smqybvljcp4iad8ri1pld260bmf1v-guestfs-tools-1.52.3.drv
  /nix/store/dhf3m8kmjb5fqvylqm98a9n1iwgffpr0-ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/48knbhgqdshd6pr5k62ymikrc88bzqaa-run-vm-vm.drv
  /nix/store/k5ig0r09dw8psybi1fncnhsr7s9a8r6z-driver-configuration.json.drv
  /nix/store/vy9a6cbal34wgjzvfbmk6qibb8b0azri-vm-test-ubuntu_22_04.drv