Add more information for test failures
Add more information for test failures

Change-Id: I42fb4557395aaadae600e148613ae736f5dc04ec
Reviewed-on: http://review.couchbase.org/55081
Tested-by: buildbot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Dave Rigby <a09264da4832c7ff1d3bf1608a19f4b870f93750@couchbase.com>

daverigby/memcached,daverigby/kv_engine,couchbase/memcached,daverigby/memcached,couchbase/memcached,owendCB/memcached,owendCB/memcached,daverigby/kv_engine,daverigby/memcached,owendCB/memcached,daverigby/kv_engine,couchbase/memcached,couchbase/memcached,owendCB/memcached,daverigby/kv_engine,daverigby/memcached