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

Build failed. - periodic-keystone-docs-liberty http://logs.openstack.org/periodic-stable/periodic-keystone-docs-liberty/b9c... : POST_FAILURE in 11m 37s - periodic-keystone-python27-db-liberty http://logs.openstack.org/periodic-stable/periodic-keystone-python27-db-libe... : POST_FAILURE in 19m 48s - periodic-keystone-docs-mitaka http://logs.openstack.org/periodic-stable/periodic-keystone-docs-mitaka/0fa0... : POST_FAILURE in 11m 15s - periodic-keystone-python27-db-mitaka http://logs.openstack.org/periodic-stable/periodic-keystone-python27-db-mita... : POST_FAILURE in 22m 11s