these 2 derivations will be built:
  /nix/store/xqlykqbszmi6a38kn51x4ggq2h1yac5x-nix-grpc-store-0.1.0.drv
  /nix/store/4xpck8913dci896iyamhs9nr1amnxh22-nix-grpc-store-dispatcher.drv