Build failed. https://zuul.opendev.org/t/openstack/buildset/3223432de3f4468282352f883c61c9b3 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/22a726a591d940d49b8ce91f1145c6c3 : SUCCESS in 5m 13s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/55870480cc0847c4945cc66313800adc : FAILURE in 2m 39s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ec3461c66db44ba58b808f8200006da7 : SUCCESS in 3m 07s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/57c4c9da4113455582a23738431be56b : FAILURE in 2m 33s