Build failed. https://zuul.opendev.org/t/openstack/buildset/3d0d0131b5db43a79f1f52019b1d2473 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2be3294201df49e582061b5112ae03db : FAILURE in 3m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/fd87077719b74147a6ec15bf87c92a49 : SUCCESS in 4m 56s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/abd43e744d80483e89d7826d28eb65df : SUCCESS in 3m 07s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a4f849ca3d8f4e89b8d77a2201a6052f : SUCCESS in 3m 26s