Build failed. https://zuul.opendev.org/t/openstack/buildset/a6c01a9a45254a3bbdaae2325936d5e7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6c5bd5724d9440b49436c6445064a7a3 : FAILURE in 8m 06s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/71f732cca9834a60bc4939b7c112ae77 : SUCCESS in 5m 11s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a3bc2b674f3a426d8ca5f9218923a5f0 : SUCCESS in 5m 11s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/646017ea20ca47ec865b1dba739f4197 : SUCCESS in 7m 49s