Trying to jit fibonacci function results in JitError: function can't be jitted

[ashish01]

Summary

JitError: function can't be jitted (fibonacci)

Expected

The function is compiled to native code and runs fast

Actual

JitError

Details

Trying to run the following program in windows 11

def fib(n: int) -> int:
  if n == 0 or n == 1:
    return 1
  return fib(n-1) + fib(n-2)

fib.__jit__()

print(fib(35))

Results in following

target\release\rustpython.exe fibs.py
Traceback (most recent call last):
  File "fibs.py", line 6, in <module>
    fib.__jit__()
JitError: function can't be jitted

I compiled from source on following commit

commit 3eda1cf3b4a29eb35c30f2a3ed272771c642c065 (HEAD -> main, origin/main, origin/HEAD)
Author: Alin-Ioan Alexandru <[email protected]>
Date:   Thu Jan 25 07:54:06 2024 +0200

    Deprecation warning fix for __complex__ (#5152)

using following command

>cargo build --release --features jit

Is this expected?