in lib/shelf_io.dart [235:247]
Response _logError(Request request, String message, StackTrace stackTrace) {
// Add information about the request itself.
var buffer = StringBuffer();
buffer.write('${request.method} ${request.requestedUri.path}');
if (request.requestedUri.query.isNotEmpty) {
buffer.write('?${request.requestedUri.query}');
}
buffer.writeln();
buffer.write(message);
_logTopLevelError(buffer.toString(), stackTrace);
return Response.internalServerError();
}