Build failed. https://zuul.opendev.org/t/openstack/buildset/38aa0b48594d4700bf62e526c70d9c3e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/16c06041ba3d44c8b06ec277c9961484 : FAILURE in 3m 31s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6d9b91e6eac842b197e380f764a9eee2 : SUCCESS in 3m 13s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0e2acec356bd400d941adc524a6c26ee : SUCCESS in 3m 22s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5e7466767e5a4f2f981dbcabcf788085 : SUCCESS in 3m 34s