Build failed. https://zuul.opendev.org/t/openstack/buildset/ca2123f46ceb4a5db9eff4f2bb1763cd - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/083ab13f3ae549809a9d5b6e785a7850 : SUCCESS in 2m 57s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b95ee17a94ed4d0791cb8be522d145c6 : FAILURE in 3m 56s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6e5e8ecf06c44c4fbcfc6927a9be4af1 : SUCCESS in 2m 48s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/09306a0f23c34503b08854a93dc2db89 : FAILURE in 2m 46s