Build failed. https://zuul.opendev.org/t/openstack/buildset/eadd7470709b406196889747a1520f45 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/cb7b4af3a7e7431ebd51e1750a08a1b3 : SUCCESS in 3m 16s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e3d486a4ab134274b284dfdbede3531a : SUCCESS in 4m 39s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b0d386613b1e4ca98a9651e47aef37bc : SUCCESS in 3m 14s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8f71d128f78043b987cf0386db7c1703 : FAILURE in 3m 28s