wsrep.variables fails in buildbot with wrong result

wsrep.variables                          w2 [ fail ]

        Test ended at 2017-11-07 14:47:54

CURRENT_TEST: wsrep.variables

--- /usr/share/mysql-test/suite/wsrep/r/variables.result	2017-11-07 13:07:43.000000000 +0200

+++ /dev/shm/var/2/log/variables.reject	2017-11-07 14:47:54.629938810 +0200

@@ -206,7 +206,7 @@

 Threads_connected	1

 SHOW STATUS LIKE 'wsrep_thread_count';

 Variable_name	Value

-wsrep_thread_count	11

+wsrep_thread_count	12

 #

 # MDEV#6411: Setting set @@global.wsrep_sst_auth=NULL causes crash

 #

mysqltest: Result content mismatch

worker[2] > Restart [mysqld.1 - pid: 5724, winpid: 5724] - running with different options '' != '--innodb --innodb-cmpmem --innodb-cmp-per-index --innodb-trx --innodb-locks --innodb-metrics --innodb-buffer-pool-stats --innodb-buffer-page --innodb-buffer-page-lru --innodb-sys-columns --innodb-sys-fields --innodb-sys-foreign --innodb-sys-foreign-cols --innodb-sys-indexes --innodb-sys-tables --innodb-sys-virtual'

rpl.rpl_test_framework 'stmt'            w1 [ pass ]  11705

worker[1] > Restart [mysqld.1 - pid: 5221, winpid: 5221] - using different config file

worker[1] > Restart [mysqld.2 - pid: 5223, winpid: 5223] - using different config file

worker[1] > Restart [mysqld.3 - pid: 5225, winpid: 5225] - using different config file

worker[1] > Restart [mysqld.4 - pid: 5227, winpid: 5227] - using different config file

worker[1] > Restart [mysqld.5 - pid: 5229, winpid: 5229] - using different config file

worker[1] > Restart [mysqld.6 - pid: 5234, winpid: 5234] - using different config file

worker[1] > Restart [mysqld.7 - pid: 5277, winpid: 5277] - using different config file

worker[1] > Restart [mysqld.8 - pid: 5287, winpid: 5287] - using different config file

worker[1] > Restart [mysqld.9 - pid: 5304, winpid: 5304] - using different config file

wsrep.mysql_tzinfo_to_sql_symlink        w2 [ pass ]     86

wsrep.plugin                             w2 [ pass ]      3

wsrep.mdev_6832                          w4 [ pass ]   4121

rpl.rpl_heartbeat_basic 'mix'            w3 [ pass ]  57381

worker[3] > Restart [mysqld.1 - pid: 5092, winpid: 5092] - using different config file

worker[3] > Restart [mysqld.2 - pid: 3295, winpid: 3295] - using different config file

wsrep.wsrep_rpl 'innodb,mix'             w1 [ pass ]    903

worker[1] > Restart [mysqld.1 - pid: 5912, winpid: 5912] - running with different options '--binlog-format=statement --innodb --innodb-cmpmem --innodb-cmp-per-index --innodb-trx --innodb-locks --innodb-metrics --innodb-buffer-pool-stats --innodb-buffer-page --innodb-buffer-page-lru --innodb-sys-columns --innodb-sys-fields --innodb-sys-foreign --innodb-sys-foreign-cols --innodb-sys-indexes --innodb-sys-tables --innodb-sys-virtual --log-bin=master-bin' != '--binlog-format=mixed --innodb --innodb-cmpmem --innodb-cmp-per-index --innodb-trx --innodb-locks --innodb-metrics --innodb-buffer-pool-stats --innodb-buffer-page --innodb-buffer-page-lru --innodb-sys-columns --innodb-sys-fields --innodb-sys-foreign --innodb-sys-foreign-cols --innodb-sys-indexes --innodb-sys-tables --innodb-sys-virtual --log-bin=master-bin'

worker[1] > Restart [mysqld.2 - pid: 5914, winpid: 5914] - running with different options '--binlog-format=statement --innodb --innodb-cmpmem --innodb-cmp-per-index --innodb-trx --innodb-locks --innodb-metrics --innodb-buffer-pool-stats --innodb-buffer-page --innodb-buffer-page-lru --innodb-sys-columns --innodb-sys-fields --innodb-sys-foreign --innodb-sys-foreign-cols --innodb-sys-indexes --innodb-sys-tables --innodb-sys-virtual --log-bin=slave-bin' != '--binlog-format=mixed --innodb --innodb-cmpmem --innodb-cmp-per-index --innodb-trx --innodb-locks --innodb-metrics --innodb-buffer-pool-stats --innodb-buffer-page --innodb-buffer-page-lru --innodb-sys-columns --innodb-sys-fields --innodb-sys-foreign --innodb-sys-foreign-cols --innodb-sys-indexes --innodb-sys-tables --innodb-sys-virtual --log-bin=slave-bin'

wsrep.wsrep_rpl 'innodb,row'             w3 [ pass ]    898

worker[3] > Restart [mysqld.1 - pid: 6016, winpid: 6016] - using different config file

worker[3] > Restart [mysqld.2 - pid: 6022, winpid: 6022] - using different config file

wsrep.mdev_7798                          w4 [ pass ]   3838

worker[4] > Restart [mysqld.1 - pid: 6178, winpid: 6178] - using different config file

wsrep.wsrep_rpl 'innodb,stmt'            w1 [ pass ]    894

worker[1] > Restart [mysqld.1 - pid: 6102, winpid: 6102] - using different config file

worker[1] > Restart [mysqld.2 - pid: 6108, winpid: 6108] - using different config file

maria.small_blocksize                    w1 [ pass ]     38

worker[1] > Restart [mysqld.1 - pid: 6248, winpid: 6248] - running with different options '--innodb-undo-tablespaces=0 --innodb --innodb-cmpmem --innodb-cmp-per-index --innodb-trx --innodb-locks --innodb-metrics --innodb-buffer-pool-stats --innodb-buffer-page --innodb-buffer-page-lru --innodb-sys-columns --innodb-sys-fields --innodb-sys-foreign --innodb-sys-foreign-cols --innodb-sys-indexes --innodb-sys-tables --innodb-sys-virtual --plugin-load-add=example_key_management.so --loose-example-key-management --aria-encrypt-tables --encrypt-tmp-disk-tables --innodb-encrypt-tables --innodb-encrypt-log --innodb-encryption-rotate-key-age=15 --innodb-encryption-threads=4 --innodb-tablespaces-encryption' != '--aria-block-size=1024'

main.connect                             w3 [ pass ]  10176

worker[3] > Restart [mysqld.1 - pid: 6218, winpid: 6218] - using different config file

main.pool_of_threads                     w4 [ pass ]  11694

worker[4] > Restart [mysqld.1 - pid: 6250, winpid: 6250] - using different config file

encryption.innodb_encryption 'innodb,undo0' w1 [ pass ]   9508

worker[1] > Restart [mysqld.1 - pid: 6431, winpid: 6431] - running with different options '--auto-increment-increment=1 --loose-thread-pool-size=4' != '--innodb-undo-tablespaces=0 --innodb --innodb-cmpmem --innodb-cmp-per-index --innodb-trx --innodb-locks --innodb-metrics --innodb-buffer-pool-stats --innodb-buffer-page --innodb-buffer-page-lru --innodb-sys-columns --innodb-sys-fields --innodb-sys-foreign --innodb-sys-foreign-cols --innodb-sys-indexes --innodb-sys-tables --innodb-sys-virtual --plugin-load-add=example_key_management.so --loose-example-key-management --aria-encrypt-tables --encrypt-tmp-disk-tables --innodb-encrypt-tables --innodb-encrypt-log --innodb-encryption-rotate-key-age=15 --innodb-encryption-threads=4 --innodb-tablespaces-encryption'

sys_vars.sysvars_server_embedded '32bit' w1 [ skipped ]  Test requires: embedded server

encryption.innodb_encryption-page-compression 'innodb' w4 [ pass ]   2415

sys_vars.sysvars_server_notembedded '32bit' w1 [ pass ]     43

worker[1] > Restart [mysqld.1 - pid: 6535, winpid: 6535] - running with different options '--innodb --innodb-cmpmem --innodb-cmp-per-index --innodb-trx --innodb-locks --innodb-metrics --innodb-buffer-pool-stats --innodb-buffer-page --innodb-buffer-page-lru --innodb-sys-columns --innodb-sys-fields --innodb-sys-foreign --innodb-sys-foreign-cols --innodb-sys-indexes --innodb-sys-tables --innodb-sys-virtual --autocommit=0' != '--auto-increment-increment=1 --loose-thread-pool-size=4'

sys_vars.autocommit_func3 'innodb'       w1 [ pass ]     13

worker[1] > Restart [mysqld.1 - pid: 6569, winpid: 6569] - running with different options '--innodb --innodb-cmpmem --innodb-cmp-per-index --innodb-trx --innodb-locks --innodb-metrics --innodb-buffer-pool-stats --innodb-buffer-page --innodb-buffer-page-lru --innodb-sys-columns --innodb-sys-fields --innodb-sys-foreign --innodb-sys-foreign-cols --innodb-sys-indexes --innodb-sys-tables --innodb-sys-virtual --autocommit=1' != '--innodb --innodb-cmpmem --innodb-cmp-per-index --innodb-trx --innodb-locks --innodb-metrics --innodb-buffer-pool-stats --innodb-buffer-page --innodb-buffer-page-lru --innodb-sys-columns --innodb-sys-fields --innodb-sys-foreign --innodb-sys-foreign-cols --innodb-sys-indexes --innodb-sys-tables --innodb-sys-virtual --autocommit=0'

sys_vars.autocommit_func2 'innodb'       w1 [ pass ]      9

worker[1] > Restart [mysqld.1 - pid: 6609, winpid: 6609] - running with different options '--innodb --innodb-cmpmem --innodb-cmp-per-index --innodb-trx --innodb-locks --innodb-metrics --innodb-buffer-pool-stats --innodb-buffer-page --innodb-buffer-page-lru --innodb-sys-columns --innodb-sys-fields --innodb-sys-foreign --innodb-sys-foreign-cols --innodb-sys-indexes --innodb-sys-tables --innodb-sys-virtual --autocommit=off' != '--innodb --innodb-cmpmem --innodb-cmp-per-index --innodb-trx --innodb-locks --innodb-metrics --innodb-buffer-pool-stats --innodb-buffer-page --innodb-buffer-page-lru --innodb-sys-columns --innodb-sys-fields --innodb-sys-foreign --innodb-sys-foreign-cols --innodb-sys-indexes --innodb-sys-tables --innodb-sys-virtual --autocommit=1'

wsrep.variables                          w2 [ fail ]

        Test ended at 2017-11-07 14:47:54