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

Build failed. - periodic-keystone-docs-havana http://logs.openstack.org/periodic-stable/periodic-keystone-docs-havana/b233... : SUCCESS in 2m 25s - periodic-keystone-python26-havana http://logs.openstack.org/periodic-stable/periodic-keystone-python26-havana/... : FAILURE in 13m 28s - periodic-keystone-python27-havana http://logs.openstack.org/periodic-stable/periodic-keystone-python27-havana/... : SUCCESS in 11m 51s