Build failed. https://zuul.opendev.org/t/openstack/buildset/fe072d62230b4d1b97a2bd7e0a088c13 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/748dce8629be492b8274ffd052b489b8 : SUCCESS in 2m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d5ea0572a0fd4960b36bf63ac7772a04 : SUCCESS in 2m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/79fd24bf5a7540c994cb309937de467a : SUCCESS in 2m 43s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/cf3665fa003f4cbba3b23d111bf25dfc : FAILURE in 2m 46s