"Container crashed" may be interpreted as nuisance failure

[inducer]

Setting the recursion limit to (say) 10k and then overflowing the stack leads the container to crash. The result is a RemoteDisconnected error, which is currently being treated as a "nuisance failure", with inappropriate student messaging:

https://github.com/inducer/relate/blob/35cd621191a9e161271673e99fdcdf3b4d771da1/course/page/code.py#L370-L398

See also #1025.