Build failed. https://zuul.opendev.org/t/openstack/buildset/74d198aca677462693266a628dd2418c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ba732e3b07fc4dac92ca15f4a167e773 : SUCCESS in 3m 28s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6bebb9b08a7d4267a3cff6eb3480a73a : FAILURE in 3m 29s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/166981e37aed480b8929e20a9cfbf0a8 : SUCCESS in 3m 17s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3faf6b8aff994f7f817ce541369f44e8 : SUCCESS in 3m 45s