CURRENT_TEST: innodb.innodb-index-online
mysqltest: At line 378: query 'SET GLOBAL innodb_max_purge_lag_wait=0' failed: <Unknown> (2013): Lost connection to server during query

The result from queries just before the failure was:
< snip >
(@merge_decrypt_2-@merge_decrypt_1) as sort_balance,
(@rowlog_encrypt_2-@rowlog_encrypt_1)-
(@rowlog_decrypt_2-@rowlog_decrypt_1) as log_balance;
sort_balance	log_balance
0	0
SELECT
@merge_encrypt_2-@merge_encrypt_1>0 as sort_encrypted,
@merge_decrypt_2-@merge_decrypt_1>0 as sort_decrypted,
@rowlog_encrypt_2-@rowlog_encrypt_1>0 as log_encrypted,
@rowlog_decrypt_2-@rowlog_decrypt_1>0 as log_decrypted;
sort_encrypted	sort_decrypted	log_encrypted	log_decrypted
0	0	0	0
connection con1;
SELECT COUNT(c22f) FROM t1;
COUNT(c22f)
320
CHECK TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
SET GLOBAL innodb_max_purge_lag_wait=0;

More results from queries before failure can be found in /dev/shm/var/2/log/innodb-index-online.log
