Build failed. https://zuul.opendev.org/t/openstack/buildset/6a88288ee57547ef97dff7041b215c4b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d5baee298846494ab71ff9a2c6f72d1b : FAILURE in 5m 26s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bf5f9cc1648d4fc68d0343f041a431ec : SUCCESS in 5m 32s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0a1721442f064568b37d2991a31e7e0e : SUCCESS in 4m 54s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/265d32d1e48c4f68861f89230313d5df : SUCCESS in 5m 56s