main.create_drop_event failed in buildbot with wrong result

main.create_drop_event                   w2 [ fail ]

        Test ended at 2018-05-21 15:29:26

CURRENT_TEST: main.create_drop_event

--- D:/win32-debug/build/src/mysql-test/main/create_drop_event.result	2018-05-21 14:34:30.728165100 +0000

+++ D:\win32-debug\build\src\mysql-test\main\create_drop_event.reject	2018-05-21 15:29:15.651849300 +0000

@@ -31,7 +31,7 @@

 SET GLOBAL event_scheduler=on;

 SELECT DISTINCT a FROM t1;

 a

-13

+10

 SET GLOBAL event_scheduler=off;

 DELETE FROM t1;

 DROP EVENT IF EXISTS ev1;

mysqltest: Result content mismatch