these 4 derivations will be built:
  /nix/store/554zyk0zfn04yr99z213mhdhm3hnaqz5-ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/9r6l1vf0n0w0qzlk8wjzgz3rlfp0r22b-run-vm-vm.drv
  /nix/store/npl63b0cm9ng7jw93224wd563hah7jyx-driver-configuration.json.drv
  /nix/store/qywjacl4rkmbk558xpm1kcsg5825qmgj-vm-test-ubuntu_22_04.drv