these 4 derivations will be built:
  /nix/store/qiy2yzdcgyz22pn0jzkkj03cl3gqm2aa-ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/55zrgwpsbn7v31sa4bbh7j68c5ddlar6-run-vm-vm.drv
  /nix/store/cl5lj6w1y8pja2xq9aqv9fa00zg7w9sl-driver-configuration.json.drv
  /nix/store/zvpc807xqjx8rqibazaig0d5fhl427ri-vm-test-ubuntu_22_04.drv