final function handleError($code, $m, $file = '', $line = 0, $context=[]) {
    	// 2017-07-10
    	// «Magento 2.1 php7.1 will not be supported due to mcrypt deprecation»
		// https://github.com/magento/magento2/issues/5880
		// [PHP 7.1] How to fix the «Function mcrypt_module_open() is deprecated» bug?
		// https://mage2.pro/t/2392
    	if (E_DEPRECATED !== $code || !df_contains($m, 'mcrypt') && !df_contains($m, 'mdecrypt')) {
			$this->ravenClient->breadcrumbs->record([
				'category' => 'error_reporting',
				'message' => $m,
				'level' => $this->ravenClient->translateSeverity($code),
				'data' => ['code' => $code, 'line' => $line, 'file' => $file]
			]);
		}
		return !$this->existingHandler ? false : call_user_func(
			$this->existingHandler, $code, $m, $file, $line, $context
		);
    }