these 2 derivations will be built:
  /nix/store/4g5jvs2c4972qsdfqf72rpp83lzfri9n-nix-grpc-store-0.1.0-beta.3.drv
  /nix/store/kz41zy7wr7dmrki39cj7h49y00w30wxb-nix-grpc-store-dispatcher.drv