Build failed. https://zuul.opendev.org/t/openstack/buildset/a4c26d7b04ae419aa45d72d6999be21e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/af190625d86b41bc95d01629bf9e0204 : SUCCESS in 2m 44s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1a30adea9d034a36a69a8cc0e792bacb : SUCCESS in 3m 05s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a053377af5d74385bf6b8870596f5d48 : SUCCESS in 2m 31s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ac461d4f1523486883229cfce44863f3 : FAILURE in 2m 40s