these 2 derivations will be built:
  /nix/store/wzj9pls1qwgjla7ds83pipk66pspjm0k-nix-grpc-store-0.1.0.drv
  /nix/store/327cpwx86v0yf4a8g2jwa3lg7jh0khmn-nix-grpc-store-dispatcher.drv