Magento 2.4.2通过DeployHQ执行Composer命令报错求助

执行命令 #

/opt/plesk/php/7.4/bin/php -d memory_limit=-1 /usr/lib/plesk-9.0/composer.phar update

异常现象 #

• 该命令仅通过部署服务DeployHQ执行时报错，直接用SSH命令行执行完全正常
• 最初未安装mcrypt模块，尝试安装后mcrypt相关错误仍未解决
• 明明指定了PHP 7.4版本，但出现了类似PHP 8的继承兼容性报错，且仅在DeployHQ执行时出现
• DeployHQ执行过程中会自动将laminas/laminas-dependency-plugin从v2.4降级到v2.2（适配Magento 2.4.2），本地执行不会触发这个降级操作

报错信息 #

PHP Deprecated: phpseclib_mcrypt_filter::filter($in, $out, &$consumed, $closing)的返回类型应与php_user_filter::filter($in, $out, &$consumed, bool $closing): int兼容，或使用#[ReturnTypeWillChange]属性临时抑制该通知，位于/var/www/vhosts/rftlve.raftfurniture.co.uk/rftstg.raftfurniture.co.uk/httpdocs/releases/20240913132334/vendor/phpseclib/mcrypt_compat/lib/mcrypt.php第1107行

PHP Deprecated: phpseclib_mcrypt_filter::onCreate()的返回类型应与php_user_filter::onCreate(): bool兼容，或使用#[ReturnTypeWillChange]属性临时抑制该通知，位于/var/www/vhosts/rftlve.raftfurniture.co.uk/rftstg.raftfurniture.co.uk/httpdocs/releases/20240913132334/vendor/phpseclib/mcrypt_compat/lib/mcrypt.php第1158行

PHP Deprecated: phpseclib_mcrypt_filter::onClose()的返回类型应与php_user_filter::onClose(): void兼容，或使用#[ReturnTypeWillChange]属性临时抑制该通知，位于/var/www/vhosts/rftlve.raftfurniture.co.uk/rftstg.raftfurniture.co.uk/httpdocs/releases/20240913132334/vendor/phpseclib/mcrypt_compat/lib/mcrypt.php第1221行

PHP Fatal error: 继承SplDoublyLinkedList时发生错误：Uncaught Exception: Deprecated Functionality: Laminas\Di\DefinitionList::push($definition)的返回类型应与SplDoublyLinkedList::push(mixed $value): void兼容，或使用#[ReturnTypeWillChange]属性临时抑制该通知，位于/var/www/vhosts/rftlve.raftfurniture.co.uk/rftstg.raftfurniture.co.uk/httpdocs/releases/20240913132334/vendor/laminas/laminas-di/src/DefinitionList.php第71行，异常抛出位置/var/www/vhosts/rftlve.raftfurniture.co.uk/rftstg.raftfurniture.co.uk/httpdocs/releases/20240913132334/vendor/magento/framework/App/ErrorHandler.php:61

希望有人能指出问题原因及排查方向。

内容的提问来源于stack exchange，提问作者Shaun