these 2 derivations will be built:
  /nix/store/82ac8nb9fxlml7rrga124n5cihpi0sg2-nix-grpc-store-0.1.0.drv
  /nix/store/vya3j6zypyly7scgx1l86bkr7vvay81a-nix-grpc-store-dispatcher.drv