these 2 derivations will be built:
  /nix/store/ns7pacnxv09rmrimz9853cp8a151gmhh-nix-grpc-store-0.1.0.drv
  /nix/store/kxyc182c9jrknapj62q3fwnhpsyac9zn-nix-grpc-store-exit-stress.drv