Build failed. https://zuul.opendev.org/t/openstack/buildset/d19de27a6b4c41e3a6291a145fe082b9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6d8fdff810f84e5c8d800e4a0f833579 : FAILURE in 6m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a2c8232c9e284e38bb261a264d46c9c9 : SUCCESS in 6m 36s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/47b0c9341dee4134b628c0f5fcf180fc : SUCCESS in 6m 29s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/69ab3f1a65094487869ffdc16f9cbd0c : SUCCESS in 7m 33s