Build failed. https://zuul.opendev.org/t/openstack/buildset/c6b87b66b03545c695b9d9b4890d53dc - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3bf89d32b75744e096c346c677fb89a7 : SUCCESS in 2m 50s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1d0d3127843048059dd61ed59fe3ce0b : SUCCESS in 2m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e873f26c4ad14cdf89628d17155bdba1 : SUCCESS in 2m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ab87822b7ae343c9904e7d0ddcbffa32 : FAILURE in 2m 36s