these 4 derivations will be built:
  /nix/store/6ayclcdcn68j16x0dgfamlax2d4pyini-ubuntu-23.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/60z772al5hxqdkgxjlq9v0m57gf6is5x-run-vm-vm.drv
  /nix/store/3s9hljrdfdwcg88pb6k2p7cfsifh8hqa-driver-configuration.json.drv
  /nix/store/kb5bmwgxdc2g3vhxzpx1wpdr6ml76c89-vm-test-ubuntu_23_04.drv