these 2 derivations will be built:
  /nix/store/rs6dll98m8pkbcz939g412qdcbrd8w2d-nixos-test-driver-pgmq.drv
  /nix/store/rczcin9ypsnqky1bb5abv2qqz2fh19zs-vm-test-run-pgmq.drv