these 2 derivations will be built:
  /nix/store/gy6qfkcpmrzjkr5r7qj9s2cn70m5n060-nix-grpc-store-0.2.3.drv
  /nix/store/8rhi5lhqlscxh76mx740ylkmisr7icrf-nix-grpc-store-dispatcher.drv