Build failed. https://zuul.opendev.org/t/openstack/buildset/0a14b8bfbc6d4d858c5a6564ba71f581 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5e867aaa21ea4785ba8f9490328786d3 : RETRY_LIMIT in 3s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c6659322f223405aa8bc62cc7ee33508 : FAILURE in 3m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/017e185c7b5c4ab994c03e187207f6bf : SUCCESS in 4m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5aa8936e2cef44feb8b3a69a844210a1 : SUCCESS in 3m 30s