these 2 derivations will be built:
  /nix/store/8ixbkjg3w56fd7p96hbv5d04xbw322jn-nixos-test-driver-pgjwt.drv
  /nix/store/40d1zq0dya52q05sashmp11dy5pl4fkc-vm-test-run-pgjwt.drv