these 2 derivations will be built:
  /nix/store/pw690984zl2ys1gh890why9lwcfv5n8s-nix-grpc-store-0.2.3.drv
  /nix/store/383i1q0d9nxyyd25f4bygbfcng21sfl1-nix-grpc-store-dispatcher.drv