{"ast_node_type":"variable","tokens":[{"end":83,"kind":"keyword","start":0,"text":"let"}]}
        let mut diag = Diag::new(dcx, level, fluent::metadata_multiple_candidates);
    fn into_diag(self, dcx: DiagCtxtHandle<'_>, level: Level) -> Diag<'_, G> {
        diag.arg("crate_name", self.crate_name);