these 2 derivations will be built:
  /nix/store/zp1wjrafr7sw8xvh4gaykhqrqp1g9i2l-nix-grpc-store-0.1.0.drv
  /nix/store/zkgmzpivgg2l1yxw3qfim84gzfb5hznf-nix-grpc-store-dispatcher.drv