Build failed. https://zuul.opendev.org/t/openstack/buildset/4b81bd4cecc04df299e50d8996047fed - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1b190e59079945b59d7046370d7a75d0 : FAILURE in 4m 14s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5a201a13e5d348db88d83583cea73391 : SUCCESS in 4m 14s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9462ae05c5424cb5b4066927d7baf0d3 : SUCCESS in 3m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fc778805547e4732bfc0524cdf2fb004 : SUCCESS in 3m 12s