Build failed. https://zuul.opendev.org/t/openstack/buildset/ae9ce5f0041f4b359358326b04993650 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e205ca131f484f8282fd9ecc4477426b : SUCCESS in 4m 47s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c528239769114d9e97bf2cfeca9167de : FAILURE in 3m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2a135b76deb54e86ae15b8e1a5befb82 : SUCCESS in 5m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/63c5bbae7c164c0197a2a764774d11f3 : SUCCESS in 4m 32s