spider/bugfix.wait_timeout fails in buildbot

spider/bugfix.wait_timeout               w4 [ fail ]

        Test ended at 2021-07-16 15:16:36

CURRENT_TEST: spider/bugfix.wait_timeout

--- /usr/share/mysql/mysql-test/plugin/spider/spider/bugfix/r/wait_timeout.result	2021-07-16 14:02:18.000000000 -0400

+++ /dev/shm/var/4/log/wait_timeout.reject	2021-07-16 15:16:35.867650108 -0400

@@ -105,6 +105,21 @@

 24

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+30

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 connection master_1;

 deinit

mysqltest: Result length mismatch

 - saving '/dev/shm/var/4/log/spider/bugfix.wait_timeout/' to '/dev/shm/var/log/bugfix.wait_timeout/'

Retrying test spider/bugfix.wait_timeout, attempt(2/3)...