Build failed. https://zuul.opendev.org/t/openstack/buildset/f3ec382e682545dc8e6bb5ef209fbdca - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/27d08f8a85454d7b98272da1a10a4161 : SUCCESS in 2m 57s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0a76f11163ec45d7b88a2efdedcb878b : SUCCESS in 3m 05s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e38b6fc34d054119bc8ca02618b6e1f4 : SUCCESS in 2m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d3c482e430704204a15afa47ce266d97 : FAILURE in 2m 52s