message: std:: prefix
diff: @@ -145,7 +145,7 @@ protected:
  //! Rethrow IO Exception originating from an upload thread
  void RethrowIOError() {
  if (uploader_has_error) {
  - rethrow_exception(upload_exception);
  + std::rethrow_exception(upload_exception);
  }
  }
  };
  