Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/oslo.concurrency/stable/ocata/build-openstack-sphinx-docs/e3a057b/ : RETRY_LIMIT in 3m 49s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/oslo.concurrency/stable/ocata/openstack-tox-py27/d326b59/ : SUCCESS in 4m 48s