these 2 derivations will be built:
  /nix/store/nhli0z96h6hlsv4qdc7wz5m83agbgynr-nix-grpc-store-0.2.2.drv
  /nix/store/xkjssl3ih1wp9rg3aaxzmylajfiqj9xw-nix-grpc-store-dispatcher.drv