these 2 derivations will be built:
  /nix/store/8sa9z8rh3igmiia38k53m67i646fmlsm-nix-grpc-store-0.1.0-beta.3.drv
  /nix/store/1fn32yqivv2a8ljg1pg9gcznag8kyp49-nix-grpc-store-exit-stress.drv