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

Build failed. - periodic-ceilometer-docs-kilo http://logs.openstack.org/periodic-stable/periodic-ceilometer-docs-kilo/407c... : SUCCESS in 5m 21s - periodic-ceilometer-python27-kilo http://logs.openstack.org/periodic-stable/periodic-ceilometer-python27-kilo/... : SUCCESS in 8m 17s - periodic-ceilometer-docs-liberty http://logs.openstack.org/periodic-stable/periodic-ceilometer-docs-liberty/4... : SUCCESS in 5m 11s - periodic-ceilometer-python27-liberty http://logs.openstack.org/periodic-stable/periodic-ceilometer-python27-liber... : FAILURE in 6m 00s