these 2 derivations will be built:
  /nix/store/kr7zfvinhc3a7qsblgl1jzd0j4wlp32k-nixos-test-driver-hypopg.drv
  /nix/store/5xrwx0nbnk32bvqrc5ggcf96a8h85wla-vm-test-run-hypopg.drv