Build failed. https://zuul.opendev.org/t/openstack/buildset/53e74fa172c24486a220e54a90f8ada1 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a96651b57a2344b3899eba9c454c824b : SUCCESS in 3m 02s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/44cea2f90b0248358ae5dd79c16fe30d : SUCCESS in 2m 28s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a98b9849a597471a8a2552a54cb27ff9 : SUCCESS in 2m 44s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f13bf6484acb4fe598ba713ab0492c9b : FAILURE in 2m 57s