Comment 2 for bug 1923728

It seems that all failing runs have the following warning/error line (wait: pid XXX is not a child of this shell):

2021-04-14 00:59:12.086309 | controller | ++ extras.d/80-tempest.sh:source:20 : async_wait install_tempest
2021-04-14 00:59:12.146380 | controller | [Async install_tempest:22905]: Waiting for completion of install_tempest (1 other jobs running)
2021-04-14 00:59:12.149490 | controller | /opt/stack/devstack/inc/async: line 134: wait: pid 22905 is not a child of this shell
2021-04-14 00:59:12.154288 | controller | ++ lib/tempest:install_tempest:705 : git_clone https://opendev.org/openstack/tempest.git /opt/stack/tempest master

I haven't seen that line in successful runs