{"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"tcx.dcx().span_delayed_bug(*attr_span,"}]}
                        tcx.dcx().span_delayed_bug(*attr_span, "target_feature applied to non-fn");
                    let Some(sig) = tcx.hir_node_by_def_id(did).fn_sig() else {
                        continue;