these 2 derivations will be built:
  /nix/store/adsv56pbpgxdbwbc4h1z0shx4rlwkwc6-nixos-test-driver-pgmq.drv
  /nix/store/cad23j9qhr7lflc912hkdcjql42449vh-vm-test-run-pgmq.drv