these 2 derivations will be built:
  /nix/store/xs56r4cqqjgk0vi8zs0s3x6qpmvzvv7f-nix-grpc-store-0.2.3.drv
  /nix/store/5fqcrkflb1d5rfh9mah2ln28x2c6hkyx-nix-grpc-store-dispatcher.drv