Running main.events_1 has recently broken as "20151010" is no longer in the future:

Unknown macro: {create event event3 on schedule every 50 + 10 minute starts date_add("20100101", interval 5 minute) ends date_add("20151010", interval 5 day) comment "portokala_comment" DO insert into t_event3 values (unix_timestamp(), rand());}

Unknown macro: {Warnings}

Unknown macro: {Note 1588 Event execution time is in the past and ON COMPLETION NOT PRESERVE is set. The event was dropped immediately after creation.}

Unknown macro: {select count(*) from t_event3;}

Unknown macro: {count(*)}

Replacing "20151010" on line 128 of mysql-test/t/events_1.test to a later date (I used "20380101") fixes the issue. See https://github.com/MariaDB/server/blob/10.0/mysql-test/t/events_1.test#L128

This issue is also present in upstream MySQL.