[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/2055... : SUCCESS in 3m 52s - periodic-congress-python27-newton http://logs.openstack.org/periodic-stable/periodic-congress-python27-newton/... : SUCCESS in 4m 11s - periodic-congress-docs-ocata http://logs.openstack.org/periodic-stable/periodic-congress-docs-ocata/581ea... : SUCCESS in 4m 40s - periodic-congress-python27-ocata http://logs.openstack.org/periodic-stable/periodic-congress-python27-ocata/3... : FAILURE in 11m 11s