these 2 derivations will be built:
  /nix/store/05s22v7mqbydqnqdbwi8wjqncrvj4021-nix-grpc-store-0.2.0.drv
  /nix/store/kjddf6fc2vv952gnx83k74ksb4zmanzx-nix-grpc-store-exit-stress.drv