[Openstack-stable-maint] Stable check of openstack/sahara failed

Build failed. - periodic-sahara-docs-kilo http://logs.openstack.org/periodic-stable/periodic-sahara-docs-kilo/aac27af/ : SUCCESS in 5m 14s - periodic-sahara-python27-kilo http://logs.openstack.org/periodic-stable/periodic-sahara-python27-kilo/3d7c... : UNSTABLE in 6m 23s - periodic-sahara-docs-liberty http://logs.openstack.org/periodic-stable/periodic-sahara-docs-liberty/8f88d... : SUCCESS in 5m 08s - periodic-sahara-python27-liberty http://logs.openstack.org/periodic-stable/periodic-sahara-python27-liberty/1... : UNSTABLE in 6m 21s