Build failed. https://zuul.opendev.org/t/openstack/buildset/d9d63831251b48f3ad6d0a45ce9054a9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/470b6cf428c84e9e86382452bc94903a : SUCCESS in 2m 57s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/fa7266c7fe854b8c89036baf9f3e92b6 : SUCCESS in 2m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/dcf8af7a4fea4e68a7566df3f18ecbad : FAILURE in 2m 48s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/dd7d295a7b214a7e819176b4b443a304 : FAILURE in 2m 45s