these 4 derivations will be built:
  /nix/store/fhgx1zsa5fx6zpzwycrivqcsbamm0c0l-ubuntu-23.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/j2z1lk8a32w4wx6lmc7z0jgx5ccjvg7c-run-vm-vm.drv
  /nix/store/l65an9hp9n04hhxi9ap7fy2d7h3a8h33-driver-configuration.json.drv
  /nix/store/yj0hxmwdkjy946kld2rv21jqnwz58kkv-vm-test-ubuntu_23_04.drv