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

Build failed. - periodic-nova-docs-juno http://logs.openstack.org/periodic-stable/periodic-nova-docs-juno/2222d4a/ : FAILURE in 40m 10s - periodic-nova-python26-juno http://logs.openstack.org/periodic-stable/periodic-nova-python26-juno/7e8711... : SUCCESS in 22m 28s - periodic-nova-python27-juno http://logs.openstack.org/periodic-stable/periodic-nova-python27-juno/be3af5... : SUCCESS in 20m 05s - periodic-nova-docs-kilo http://logs.openstack.org/periodic-stable/periodic-nova-docs-kilo/9bbf32c/ : FAILURE in 40m 15s - periodic-nova-python27-kilo http://logs.openstack.org/periodic-stable/periodic-nova-python27-kilo/f973be... : SUCCESS in 15m 30s