Build failed. https://zuul.opendev.org/t/openstack/buildset/aa479853034f46d790e89ee66a766407 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/99d44c321a7b4c1fb571773357cce081 : FAILURE in 3m 03s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/19ab7ed284d84cbd9aac4a6790c7376f : SUCCESS in 4m 31s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b6fba867699c4f1f8def7f0ab7da25fd : SUCCESS in 3m 47s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/04a611b712c24a9bbdac107b4d1e1ab4 : SUCCESS in 3m 51s