Build failed. https://zuul.opendev.org/t/openstack/buildset/f4620cc3ab0a48cba94c2e8a486efcc1 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f3d3c6b9413b4e4fb0b65d339b9633d9 : FAILURE in 3m 25s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a7174acaf0234788811eb49565fd23c6 : SUCCESS in 3m 43s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/703c1b90f0294bd09efcc7251f8a2c2f : SUCCESS in 3m 34s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/41f55141e73a42fbaa18204c9f90b2f2 : SUCCESS in 3m 24s