Build failed. https://zuul.opendev.org/t/openstack/buildset/2c650f4f0e394d50bf47a14fbb03340b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/058c0b6fc4f5472780adc5576270e7a8 : SUCCESS in 4m 31s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1024ad2aaaf349649ba4dbe0392de887 : FAILURE in 4m 56s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3677fcbde032410e839f44a0c0e32a19 : SUCCESS in 4m 23s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c8cfacaeabe2458ba84e37cdb1d802fb : SUCCESS in 3m 32s