Build failed. https://zuul.opendev.org/t/openstack/buildset/25fe0fe6049a450dacbd0b7214d14d27 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/974128ccd0074a26bc1795ef52c059ad : SUCCESS in 3m 09s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1f008470dc7c44d5a104c421a8ceeaf5 : FAILURE in 3m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/454768ea0bac4936be38271d7083825f : SUCCESS in 3m 21s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/85593aea8afd46d7806b9fc76425a914 : SUCCESS in 4m 04s