Describe the bug
I just cloned datafusion and tried cargo t on my ubuntu desktop, to check things were working properly.
It crashed.
I restarted, and it seems datafusion is using 50.1GB to just run tests.
The examples directory seems to be the biggest culpret.

To Reproduce
Just clone and run cargo t on Ubuntu (no idea if this is limited to linux).
Expected behavior
Humm, I guess in principle this isn't a show stopper, but seems somewhat unfortunate.
If there's an easy/low impact way to reduce disk usage, it might be useful.
Additional context
No response