these 4 derivations will be built:
  /nix/store/swg394ydya6rx3jr5128ki9vr5ky79g8-ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/2443d2p6pq1gbn8sma78iasglmmlv1bg-run-vm-vm.drv
  /nix/store/scic5mwskijix6bxzw0ks8j64cwx7lwa-driver-configuration.json.drv
  /nix/store/0fv6p97jzpa863sl3mbcwypbqybzy9yg-test-driver.drv