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/r15md7cs2lf8w839r1sn142d5i7lyi79-ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/3dna7z8wg1nkg8sialy7lx2d6anm858n-run-vm-vm.drv
  /nix/store/9mlc2yd56qg120n3jc855hdbarm7qw14-driver-configuration.json.drv
  /nix/store/qy4fjh4lgs1vk9hn35762hzh25bk3nh9-vm-test-ubuntu_22_04.drv