Build failed. https://zuul.opendev.org/t/openstack/buildset/0fe50eeba6ed40b18583b9e2f689d470 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1666d3f90534426ebc1d13d68660aba8 : SUCCESS in 5m 08s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e82709f9b974420b809b42c6b6727417 : FAILURE in 3m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/879d200ac1f441b79230e21cc0cb0158 : SUCCESS in 3m 24s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ccdd94327b604bd69cb4ae95abb7c057 : SUCCESS in 3m 34s