{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"utf8_error(cx.source_map(),"}]}
                utf8_error(cx.source_map(), path.as_str(), None, &mut err, utf8err, &bytes[..]);
                let mut err = cx.dcx().struct_span_err(sp, format!("`{path}` wasn't a utf-8 file"));
                DummyResult::any(sp, err.emit())