Build failed. https://zuul.opendev.org/t/openstack/buildset/a0bcef1706e1426cbd55f3e147fd1876 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8668f9a94e7b48eeb7071069706268fc : SUCCESS in 3m 57s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b0e703f2e65343da868dbf968664f386 : FAILURE in 4m 06s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/56cf9c6e04a744859e477a9c1fd855e8 : SUCCESS in 3m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8bfe9023dcbe45d9805f624c61e3aae8 : SUCCESS in 4m 49s