these 2 derivations will be built:
  /nix/store/11bdb2k14j1i6kmfdcwd0bgyz69skrbk-nix-grpc-store-0.1.0.drv
  /nix/store/00b82yxp8c16xrgghyskwv9dfa67pi3w-nix-grpc-store-exit-stress.drv