these 4 derivations will be built:
  /nix/store/6hj5kl9403m3qkwjlkaxqg6ivawnx6v5-ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/5mxkmf4i5i16bq6f4mg0spky0cd5hnyx-run-vm-vm.drv
  /nix/store/815p03v93y9k5cl1406nnninl7r3ldmv-driver-configuration.json.drv
  /nix/store/prv4fwc3pldv5lwx71cap03ck2ssjzm8-vm-test-ubuntu_22_04.drv