MariaDB with Beta Scheduler errors

I’ve got 7.2.0 Beta 3 running on a CentOS 6.X server backed by MariaDB. Running the cron job for the scheduler regularly fails, but I’m not quite sure what the best solution would be:

Error:

[root@dev crm]# cd /var/www/html/crm; /usr/bin/php -c/etc/php.ini -f cron.php
PHP Warning: mysqli_connect(): Headers and client library minor version mismatch. Headers:50173 Library:50312 in /var/www/html/crm/include/database/MysqliManager.php on line 282
PHP Notice: Undefined index: module in /var/www/html/crm/modules/AOW_WorkFlow/AOW_WorkFlow.php on line 134
PHP Fatal error: Cannot redeclare pollMonitoredInboxesCustomAOP() (previously declared in /var/www/html/crm/custom/modules/Schedulers/_AddJobsHere.php:43) in /var/www/html/crm/custom/modules/Schedulers/Ext/ScheduledTasks/scheduledtasks.ext.php on line 369
PHP Warning: mysqli_connect(): Headers and client library minor version mismatch. Headers:50173 Library:50312 in /var/www/html/crm/include/database/MysqliManager.php on line 282
PHP Notice: Undefined index: module in /var/www/html/crm/modules/AOW_WorkFlow/AOW_WorkFlow.php on line 134

Supporting data:
https://gist.github.com/anonymous/8f1b4537cadffbcf2081

can I assume this was an upgrade, this is probably something we have missed from the upgrade pack to get around you would need to remove pollMonitoredInboxesCustomAOP function from custom/modules/Schedulers/_AddJobsHere.php