Multiroot test failure (tests do not even start running)

[DonJayamanne]

Looks like some of the multi-root tests are failing fairly consistently due to some recent change.
I can see that it used to work up until 2-3 days ago.
The tests just don't run.
This isn't the same as #9360

[karrtikr]

They have been failing fairly consistently since months, it's just that when #9329 got fixed, these failures became visible. These should be fixed with PR #9351 which is just waiting on your review.

[DonJayamanne]

ey have been failing fairly consistently since months, it's just that when

Not convinced about that, though I could be completely wrong. As when activation fails within the allocated time, then an error is logged. However I don't see any errors logged in this job.

[kimadeline]

✅ Doesn't seem to be happening anymore: the tests run, they are back to timing out every so often (see the 3 attempts on https://dev.azure.com/ms/vscode-python/_build/results?buildId=57872&view=results)