Build failed. https://zuul.opendev.org/t/openstack/buildset/89a4d76ad450486cb810f0b3ab7eadd7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/bc46a748a51d45f6bc22fbe60f959ab9 : SUCCESS in 9m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3ac66d08360545acbf3ba72fae8e71ab : RETRY_LIMIT in 3s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/88f2a501c4c449a48927a6057b22056e : SUCCESS in 11m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/72731371b1884e258566630ce848fe81 : SUCCESS in 11m 56s