Build failed. https://zuul.opendev.org/t/openstack/buildset/5a0e61bf1d294d9e94c331e09baac4ea - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6e3651b092644c34b7c36319dc33fd06 : FAILURE in 5m 14s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/68882c0997a14ca48f2c2d916fe3c315 : SUCCESS in 5m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d7f2c83b1f9f470b80237e95ae20f396 : SUCCESS in 4m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7a72102c0661462c8ae9e3c402df711e : SUCCESS in 5m 20s