these 2 derivations will be built:
  /nix/store/fk7yyzlckl2fncg9by0vzc33wxypy5ql-nix-grpc-store-0.1.0.drv
  /nix/store/j0wlh3g7hzdcjaj9s620qyl8vim72182-nix-grpc-store-dispatcher.drv