Build failed. https://zuul.opendev.org/t/openstack/buildset/a048ee657dff48259e434780902c3dae - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b929cefd8a194633b1608783be1c6189 : SUCCESS in 3m 08s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6689c474eef44b9bad5e6f0eb5c2e3ff : SUCCESS in 3m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/61c77cecb94b4eb3a12d13afc839e4e3 : FAILURE in 3m 04s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a0bcd33078f04a99bbaaf501bc5224da : FAILURE in 3m 08s