plugins.server_audit fails sporadically in buildbot

plugins.server_audit                     w1 [ fail ]

        Test ended at 2014-11-22 07:31:14

CURRENT_TEST: plugins.server_audit

--- /mnt/buildbot/build/mariadb-10.0.15/mysql-test/suite/plugins/r/server_audit.result	2014-11-21 23:02:54.000000000 +0200

+++ /mnt/buildbot/build/mariadb-10.0.15/mysql-test/suite/plugins/r/server_audit.reject	2014-11-22 07:31:14.000000000 +0200

@@ -156,7 +156,6 @@

 TIME,HOSTNAME,root,localhost,ID,ID,QUERY,test,'show variables like \'server_audit%\'',0

 TIME,HOSTNAME,root,localhost,ID,ID,QUERY,test,'set global server_audit_mode=1',0

 TIME,HOSTNAME,root,localhost,ID,ID,QUERY,test,'set global server_audit_events=\'\'',0

-TIME,HOSTNAME,root,localhost,ID,ID,QUERY,test,'create database sa_db',0

 TIME,HOSTNAME,root,localhost,ID,0,CONNECT,test,,0

 TIME,HOSTNAME,root,localhost,ID,ID,CREATE,test,t1,

 TIME,HOSTNAME,root,localhost,ID,ID,QUERY,test,'create table t1 (id2 int)',0

@@ -169,6 +168,7 @@

 TIME,HOSTNAME,root,localhost,ID,ID,WRITE,mysql,index_stats,

 TIME,HOSTNAME,root,localhost,ID,ID,DROP,test,t1,

 TIME,HOSTNAME,root,localhost,ID,ID,QUERY,test,'drop table t1',0

+TIME,HOSTNAME,root,localhost,ID,ID,QUERY,test,'create database sa_db',0

 TIME,HOSTNAME,root,localhost,ID,ID,QUERY,sa_db,'use sa_db',0

 TIME,HOSTNAME,root,localhost,ID,ID,CREATE,sa_db,sa_t1,

 TIME,HOSTNAME,root,localhost,ID,ID,QUERY,sa_db,'create table sa_t1(id int)',0

mysqltest: Result content mismatch

...

plugins.server_audit                     w1 [ retry-pass ]   6042