these 4 derivations will be built:
  /nix/store/6lmbc6c4388pv6x8xc3jk0kma4wmldb5-ubuntu-23.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/rqp6cahzyb007isdgp8mn6pk03h2ds2s-run-vm-vm.drv
  /nix/store/lhzsb8jvax4v0z2jx6cbpmag78wpqjx2-driver-configuration.json.drv
  /nix/store/ip5ji3dvvaxnkwdjrs1kl893x1iy7f4k-vm-test-ubuntu_23_04.drv