[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/ca... : SUCCESS in 2m 40s - periodic-ceilometer-python27-mitaka http://logs.openstack.org/periodic-stable/periodic-ceilometer-python27-mitak... : FAILURE in 2m 28s - periodic-ceilometer-docs-newton http://logs.openstack.org/periodic-stable/periodic-ceilometer-docs-newton/37... : SUCCESS in 5m 48s - periodic-ceilometer-python27-newton http://logs.openstack.org/periodic-stable/periodic-ceilometer-python27-newto... : SUCCESS in 2m 29s