these 2 derivations will be built:
  /nix/store/c0l56xriq3c5b29ycb43ix10q7cw23j0-nix-grpc-store-0.1.0.drv
  /nix/store/lgmpy0zsipypnzcyffswkggphsjvhgxs-nix-grpc-store-dispatcher.drv