these 4 derivations will be built:
  /nix/store/xmfkhv820sgrximdfawgs33lpjz9ifg9-ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/6jlp1knw7x4kka3w6lirizdwv7xazvc2-run-vm-vm.drv
  /nix/store/ffymwkvlgqw8s5llxk796f37ky95qidw-driver-configuration.json.drv
  /nix/store/cdzqa0ba6hkdfjhnl72mc6aqlj3k9pls-vm-test-ubuntu_22_04.drv