Build failed. https://zuul.opendev.org/t/openstack/buildset/1adb02a2a7af4f288fe76ec43917a365 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a1473f1c474345f495408cd890aeef16 : FAILURE in 4m 34s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/96660bb3d3ab40338453356e3799600a : SUCCESS in 4m 21s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e28a192211ae4fefb06104d16b02bca0 : SUCCESS in 2m 59s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ffe312e691d0409e942d2e2d290b3d63 : SUCCESS in 4m 09s