these 2 derivations will be built:
  /nix/store/sschjy6zgyr3prdmy7cr336ikqyq63lk-nix-grpc-store-0.2.3.drv
  /nix/store/pc1dg6h0azq69lsrag2kq12fxxmsi1rk-nix-grpc-store-dispatcher.drv