these 4 derivations will be built:
  /nix/store/7k7hq1ayfgl30305i1izzb5a1s7flslc-ubuntu-26.04-server-cloudimg-amd64v3.img-nix-vm-test.qcow2.drv
  /nix/store/sgw6vj92qba2mnp7iiv8xwxi2vcx815n-run-vm-vm.drv
  /nix/store/zk50vd5yy40bvdm6bifgnkbvdys3na60-driver-configuration.json.drv
  /nix/store/4iybndssr5nippfsph5w3zgzisr99d12-vm-test-ubuntu_26_04.drv