public function errorOutput(string $output, string $identifier): void
    {
        $output = rtrim($output);

        if (empty($output)) {
            return;
        }

        $lines = explode("\n", $output);

        foreach ($lines as $line) {
            $this->write('<error>' . $identifier . ' ERR> ');
            $this->writeln($line . '</>');
        }
    }