protected function renderMessages(array $messages, OutputInterface $output)
    {
        foreach ($messages as $line => $lineErrors) {
            foreach ($lineErrors as $column => $columnErrors) {
                foreach ($columnErrors as $error) {
                    $output->writeln([
                        ">>  $line:$column  <source>" . $error['source'] .
                        '</source>',
                        '    ' . $error['message'],
                    ]);
                }
            }
        }
    }