these 2 derivations will be built:
  /nix/store/j9kwm9hhs3nnm3b5a4q274z20h488kf6-nixos-test-driver-pgmq.drv
  /nix/store/51xca9xp8b0hd2zwch9j7bf30i14cjs7-vm-test-run-pgmq.drv