Build failed. https://zuul.opendev.org/t/openstack/buildset/cb921e5ab78b444caff97a4870a24ab9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1242a0b75e59488bb03c859e28258dc7 : SUCCESS in 3m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4eda7eecd8924c40881d9910a70eb7bc : SUCCESS in 4m 02s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ed47636af9044b30b8338b4bea319414 : SUCCESS in 4m 07s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/99dc2a741455437ba6af2b08b383dfdf : FAILURE in 3m 13s