CBQE-0: log error from setup

Change-Id: I9a06150cedadd5a49eee088c2f2658a5c1cd66c6
Reviewed-on: http://review.couchbase.org/42567
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>