these 4 derivations will be built:
  /nix/store/5g83z7ja8mr3cnfpw9m1b5230nqjwbia-ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/d7lf6sj2ywg7w4srg3ggg8nvp5w04990-run-vm-vm.drv
  /nix/store/x92jcmvimvlp29nf2pdwvmr7rfb9sa7d-driver-configuration.json.drv
  /nix/store/llm0mc7hbr8f5m6wcl4wljbisg0l9dxn-vm-test-ubuntu_22_04.drv