Build failed. https://zuul.opendev.org/t/openstack/buildset/c6426fcace574d5b90ed00e7f7ba2a4a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a492455bd0a64b1c8790bc894127eead : SUCCESS in 3m 38s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4e7ca6d2fd7f49b1be5d845f225c9823 : FAILURE in 2m 49s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/61f6b4154026400cb0ca4df12e6332cc : SUCCESS in 3m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1fe818a357fb49d4a269fc27733ddf0d : SUCCESS in 3m 42s