MB-10122: Handle stream response with no failover log

This will allow us to be able to return an error instead of
crashing the entire program later down the execution path.

Change-Id: I48206193d7fec1c4f6bcefac8882cad2164a8b3f
Reviewed-on: http://review.couchbase.org/33224
Reviewed-by: Michael Wiederhold <mike@couchbase.com>
Tested-by: Michael Wiederhold <mike@couchbase.com>