these 2 derivations will be built:
  /nix/store/10g15011xr9gppmrqfih3ckvhmqp6aqv-nix-grpc-store-0.1.0.drv
  /nix/store/pvw739hysmrz948qy0nvnxk14xwi0lz5-nix-grpc-store-dispatcher.drv