these 4 derivations will be built:
  /nix/store/f4hsng4svalz7i23i49q08ra82f9vi9d-test-script.drv
  /nix/store/z7w4s3qy8wabyw9r6dpa7093d2qdkgad-driverConfiguration.json.drv
  /nix/store/h2s3cvyqwdwi764vv48mv3pqmq0iy4cp-nixos-test-driver-pgmq-drop-queue-overload.drv
  /nix/store/x3dih7r20rh814gi1wvbmb4n6jpdsm6b-vm-test-run-pgmq-drop-queue-overload.drv