innodb.innodb-index-online failed in buildbot

innodb.innodb-index-online '16k,crypt,innodb' w1 [ fail ]

        Test ended at 2017-12-05 01:51:57

CURRENT_TEST: innodb.innodb-index-online

mysqltest: At line 135: query 'UPDATE mysql.innodb_index_stats SET stat_value = 5

WHERE database_name = 'test' AND table_name= 't1' AND index_name = 'PRIMARY'

AND stat_value = 6' failed: 1146: Table 'mysql.innodb_index_stats' doesn't exist

The result from queries just before the failure was:

< snip >

SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';

name	count

ddl_background_drop_indexes	0

ddl_background_drop_tables	0

ddl_online_create_index	0

ddl_pending_alter_table	0

ddl_sort_file_alter_table	0

ddl_log_file_alter_table	0

connection default;

INSERT INTO t1 VALUES(6,3,1);

ERROR 23000: Duplicate entry '3' for key 'c2'

INSERT INTO t1 VALUES(7,4,2);

ERROR 23000: Duplicate entry '4' for key 'c2'

ALTER TABLE t1 STATS_PERSISTENT=1;

ANALYZE TABLE t1;

Table	Op	Msg_type	Msg_text

test.t1	analyze	status	OK

UPDATE mysql.innodb_index_stats SET stat_value = 5

WHERE database_name = 'test' AND table_name= 't1' AND index_name = 'PRIMARY'

AND stat_value = 6;