these 2 derivations will be built:
  /nix/store/fp9yrslv93mdllx3vw1lxlfyp84z9b4v-nix-grpc-store-0.1.0.drv
  /nix/store/746137sjvrb1d4saar9bc77mb3d5pi8h-nix-grpc-store-dispatcher.drv