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

Build failed. - periodic-congress-docs-newton http://logs.openstack.org/periodic-stable/periodic-congress-docs-newton/9bff... : SUCCESS in 3m 13s - periodic-congress-python27-newton http://logs.openstack.org/periodic-stable/periodic-congress-python27-newton/... : SUCCESS in 5m 36s - periodic-congress-docs-ocata http://logs.openstack.org/periodic-stable/periodic-congress-docs-ocata/12998... : SUCCESS in 4m 01s - periodic-congress-python27-ocata http://logs.openstack.org/periodic-stable/periodic-congress-python27-ocata/6... : FAILURE in 11m 22s