these 2 derivations will be built:
  /nix/store/ffxb7i91nvffdzszj56g9pcf96vlgm5j-nix-grpc-store-0.1.0.drv
  /nix/store/q8fqdvd05c7dp97xiiqiqkl0ykyxf6k6-nix-grpc-store-dispatcher.drv