Build failed. https://zuul.opendev.org/t/openstack/buildset/5241983fd5e248b9b579d524a22729ae - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7bde4af9d11f4e45ad168c96fbe496ef : SUCCESS in 2m 37s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/618ad999dcdb4911bdd03131b50a9611 : FAILURE in 2m 36s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4c3e13b8fa724af89daec0a21edd8d8a : SUCCESS in 3m 03s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0e59b63b7a584865a501a1e0afb2e677 : FAILURE in 2m 59s