Build failed. https://zuul.opendev.org/t/openstack/buildset/f412f4ec5d6f4dc19e629bc9ae65f892 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b6c25c4921e74f58bb362f489d447431 : FAILURE in 3m 34s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6a0cd259ce4c4904bbfd5376071d5efa : SUCCESS in 3m 09s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/aaa68aa2596c4fa0ba1c1c4d2ae475ec : SUCCESS in 2m 45s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/de810b1b79204652a3e14b6a49a68345 : SUCCESS in 3m 35s