{"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"#[allow(rustc::untranslatable_diagnostic)]"}]}
            #[allow(rustc::untranslatable_diagnostic)] // FIXME: make this translatable
        if !$has_feature && !$span.allows_unstable($name) {
            let mut diag = feature_err(&$visitor.sess, $name, $span, $explain);