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

Build failed. - periodic-ceilometer-docs-mitaka http://logs.openstack.org/periodic-stable/periodic-ceilometer-docs-mitaka/4a... : SUCCESS in 3m 11s - periodic-ceilometer-python27-mitaka http://logs.openstack.org/periodic-stable/periodic-ceilometer-python27-mitak... : FAILURE in 6m 55s - periodic-ceilometer-docs-newton http://logs.openstack.org/periodic-stable/periodic-ceilometer-docs-newton/72... : SUCCESS in 3m 18s - periodic-ceilometer-python27-newton http://logs.openstack.org/periodic-stable/periodic-ceilometer-python27-newto... : SUCCESS in 2m 53s