[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/40a66ec/ : SUCCESS in 7m 43s - periodic-nova-python27-kilo http://logs.openstack.org/periodic-stable/periodic-nova-python27-kilo/c6e9a6... : SUCCESS in 11m 40s - periodic-nova-docs-liberty http://logs.openstack.org/periodic-stable/periodic-nova-docs-liberty/20ea1b3... : FAILURE in 9m 44s - periodic-nova-python27-liberty http://logs.openstack.org/periodic-stable/periodic-nova-python27-liberty/62f... : SUCCESS in 11m 34s