these 4 derivations will be built:
  /nix/store/g3nk1y9b719k6v4g3jx470axx1szvwlp-ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/zxcnnmb57m8n9hlwalca8nj87r39smcw-run-vm-vm.drv
  /nix/store/bhjxy446rzlj935s4fj0vz1fg5w4n93z-driver-configuration.json.drv
  /nix/store/sxffhkmwp0bddgxq6izalzz8wsmp8gah-vm-test-ubuntu_22_04.drv