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

Build failed. - periodic-pbr-docs-newton http://logs.openstack.org/periodic-stable/periodic-pbr-docs-newton/9103adc/ : FAILURE in 4m 24s - periodic-pbr-python27-newton http://logs.openstack.org/periodic-stable/periodic-pbr-python27-newton/d7968... : SUCCESS in 3m 18s - periodic-pbr-docs-ocata http://logs.openstack.org/periodic-stable/periodic-pbr-docs-ocata/5408afb/ : FAILURE in 2m 09s - periodic-pbr-python27-ocata http://logs.openstack.org/periodic-stable/periodic-pbr-python27-ocata/723458... : SUCCESS in 4m 50s