Build failed. https://zuul.opendev.org/t/openstack/buildset/158f07cc41ca46f7a640d8d7ab350fd2 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/bebc8e8e6e6643989dfc40abcb839fa0 : SUCCESS in 3m 10s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/86a1d0517547408f941109cfba607a06 : FAILURE in 2m 34s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/41f4a755af8148f0bc81ef7685da6af0 : SUCCESS in 2m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9a139b5f8ecf4ed5932f5c6634678d28 : FAILURE in 2m 46s