Build failed. https://zuul.opendev.org/t/openstack/buildset/2734f7885d144620a0f4095d7d2c08fb - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4bd93700f5564058a221f55bd1b73a20 : SUCCESS in 16m 23s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a8c808572b3a4e40ac61cc01b2c897a5 : RETRY_LIMIT in 2m 45s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ea95e48c5ce940bcb36fde07b7a17005 : SUCCESS in 7m 23s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9ab8026ee68747d2a73b2c208780167d : SUCCESS in 7m 54s