these 2 derivations will be built:
  /nix/store/jy41ji60wqjbmcms64knx92y3jin9a6d-nix-grpc-store-0.2.3.drv
  /nix/store/5fzjr0d5nc1nrkj7f4vjymkpd0h73icq-nix-grpc-store-dispatcher.drv