Build failed. https://zuul.opendev.org/t/openstack/buildset/24e35001c3804459beba927ebcd33429 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/493ab6b285ae456b957a9c28bc8f4042 : SUCCESS in 3m 10s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a42eaa957e06486ea6a4603b0baa12f4 : SUCCESS in 2m 47s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1040cce7aff24ddf9e1c85addb70fe5b : FAILURE in 3m 15s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/74b71a676b80466cb6865a0a50ea2fc0 : FAILURE in 3m 24s