[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/2363291/ : SUCCESS in 6m 54s - periodic-nova-python27-kilo http://logs.openstack.org/periodic-stable/periodic-nova-python27-kilo/8ef292... : FAILURE in 8m 25s - periodic-nova-docs-liberty http://logs.openstack.org/periodic-stable/periodic-nova-docs-liberty/d840de8... : SUCCESS in 9m 12s - periodic-nova-python27-liberty http://logs.openstack.org/periodic-stable/periodic-nova-python27-liberty/61b... : SUCCESS in 11m 12s