Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/castellan/stable/pike/build-openstack-sphinx-docs/d116160/ : RETRY_LIMIT in 3m 30s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/castellan/stable/pike/openstack-tox-py27/66377a7/ : SUCCESS in 4m 44s