this derivation will be built:
  /nix/store/vpvi8fw1ysmigc8166rsifi7ajmr2987-vm-test-run-pgroonga.drv
this path will be fetched (4.0 KiB download, 16.7 KiB unpacked):
  /nix/store/06adsrwgxbjxb9hgh1cgpskyg3vpis64-nixos-test-driver-pgroonga