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

Build failed. - periodic-nova-docs-kilo http://logs.openstack.org/periodic-stable/periodic-nova-docs-kilo/cf3b48f/ : SUCCESS in 7m 39s - periodic-nova-python27-kilo http://logs.openstack.org/periodic-stable/periodic-nova-python27-kilo/10c0fa... : SUCCESS in 12m 19s - periodic-nova-docs-liberty http://logs.openstack.org/periodic-stable/periodic-nova-docs-liberty/e01068a... : SUCCESS in 9m 13s - periodic-nova-python27-liberty http://logs.openstack.org/periodic-stable/periodic-nova-python27-liberty/b75... : FAILURE in 11m 00s