{"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"self.r.tcx.dcx().span_delayed_bug(item.span,"}]}
                        self.r.tcx.dcx().span_delayed_bug(item.span, msg);
                        let msg = format!("extern crate `{ident}` already in extern prelude");
                    } else {