Code review comment for ~sylvain-pineau/checkbox-ng:no_psutil_xenial

The merge was fine but running tests failed.

[xenial] [13:29:39] starting container
Device project added to xenial-testing
[bionic] [13:29:40] starting container
Device project added to bionic-testing
[xenial] [13:29:47] provisioning container
[bionic] [13:29:53] provisioning container
[bionic] [13:31:12] Unable to provision requirements in container!
[bionic] output: https://paste.ubuntu.com/p/dmCDq64Rnq/
[bionic] [13:31:15] Fixing file permissions in source directory
[bionic] Destroying failed container to reclaim resources
[xenial] [13:31:47] Unable to provision requirements in container!
[xenial] output: https://paste.ubuntu.com/p/QVPX8VvHxB/
[xenial] [13:31:49] Fixing file permissions in source directory
[xenial] Destroying failed container to reclaim resources