Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/oslo.concurrency/stable/ocata/build-openstack-sphinx-docs/6790ca9/ : RETRY_LIMIT in 3m 31s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/oslo.concurrency/stable/ocata/openstack-tox-py27/44985e0/ : SUCCESS in 3m 51s