these 2 derivations will be built:
  /nix/store/9m9a24wdwsrf816515yy0g9chi9zsvrm-nix-grpc-store-0.2.3.drv
  /nix/store/p684g0rf3n69pavxklvv1ksh7v7zxf29-nix-grpc-store-exit-stress.drv