these 2 derivations will be built:
  /nix/store/n03dfjhfpwyf50kzbsy9rkrmkadqi3f4-nixos-test-driver-hypopg.drv
  /nix/store/wcjq8926dmys3gzvh0zk37pzb9zn5vnw-vm-test-run-hypopg.drv