MB-12451 Verification build to test MCD memory leak

Change-Id: Ic77da8624c24f6319a2ec84e63fed1e76f9c35af
Reviewed-on: http://review.couchbase.org/42723
Reviewed-by: Chris Hillery <ceej@couchbase.com>
Tested-by: Chris Hillery <ceej@couchbase.com>