Build failed. https://zuul.opendev.org/t/openstack/buildset/7730bce3e0a04cd3ae95439ba6758034 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a04d960304274b3299f937e1cf43b63c : FAILURE in 3m 09s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f7d24540ae244895b6ba49f0d9faf27b : SUCCESS in 3m 04s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/fb27e35d583840f19bc574477e8944ec : SUCCESS in 2m 56s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7bed46591a8b49e78a11a493a7703717 : SUCCESS in 8m 15s