[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/7649... : SUCCESS in 6m 34s - periodic-congress-python27-newton http://logs.openstack.org/periodic-stable/periodic-congress-python27-newton/... : SUCCESS in 5m 19s - periodic-congress-docs-ocata http://logs.openstack.org/periodic-stable/periodic-congress-docs-ocata/f28a1... : SUCCESS in 4m 42s - periodic-congress-python27-ocata http://logs.openstack.org/periodic-stable/periodic-congress-python27-ocata/f... : FAILURE in 9m 49s