Build failed. https://zuul.opendev.org/t/openstack/buildset/b28c883ade9c4440ad89f540e5e10f6f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6338c86f60ad44f0a8491f265c59bb0b : SUCCESS in 3m 05s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a2a7ac7d88124aeaad747a5b9d392abc : FAILURE in 2m 42s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c13e9e4bbc894c00998c09b3dbc89c7b : SUCCESS in 2m 26s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/720618267c494a2d8e85b4822707561f : FAILURE in 2m 49s