{"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":"#[allow(rustc::untranslatable_diagnostic)]"}]}
            #[allow(rustc::untranslatable_diagnostic)]
            #[allow(rustc::diagnostic_outside_of_impl)]
            feature_err(&$visitor.sess, sym::$feature, $span, $explain).with_help($help).emit();