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

Build failed. - periodic-horizon-docs-liberty http://logs.openstack.org/periodic-stable/periodic-horizon-docs-liberty/e7c6... : SUCCESS in 5m 22s - periodic-horizon-python27-liberty http://logs.openstack.org/periodic-stable/periodic-horizon-python27-liberty/... : SUCCESS in 7m 23s - periodic-horizon-docs-mitaka http://logs.openstack.org/periodic-stable/periodic-horizon-docs-mitaka/3ca2d... : SUCCESS in 4m 35s - periodic-horizon-python27-mitaka http://logs.openstack.org/periodic-stable/periodic-horizon-python27-mitaka/2... : FAILURE in 7m 08s