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

Build failed. - periodic-neutron-vpnaas-docs-newton http://logs.openstack.org/periodic-stable/periodic-neutron-vpnaas-docs-newto... : SUCCESS in 5m 48s - periodic-neutron-vpnaas-python27-newton http://logs.openstack.org/periodic-stable/periodic-neutron-vpnaas-python27-n... : SUCCESS in 5m 18s - periodic-neutron-vpnaas-docs-ocata http://logs.openstack.org/periodic-stable/periodic-neutron-vpnaas-docs-ocata... : FAILURE in 2m 53s - periodic-neutron-vpnaas-python27-ocata http://logs.openstack.org/periodic-stable/periodic-neutron-vpnaas-python27-o... : SUCCESS in 7m 19s