cbqe-0: fix hanging job

Change-Id: I0b23ceb7d6189f86a618512fe45417f6cd7a9049
Reviewed-on: http://review.couchbase.org/40268
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>