Build failed. https://zuul.opendev.org/t/openstack/buildset/43c65dee16a442b59ef7a3e6839e1c98 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/74721fa9dcaf462eba3c33cd25ed4658 : SUCCESS in 3m 57s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/810bc6e306034d8aaf781762af1672d2 : FAILURE in 2m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a1e81153b4414db6b1225d25eb62cc4a : SUCCESS in 3m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/674629de05b041f98d135bbc2e3b0517 : FAILURE in 2m 49s