In the following example, b is an empty list, we execute starmap() on b for 100000, then rustpython crashes with segmentation fault. This case can work well on CPython 3.9.1.

test.py:

from operator import add
from itertools import starmap
b=[]
for i in range(100000):
    b = starmap(i, zip(b, b))
list(b)

Behavior on rustpython(rustpython 0.1.2):
Segmentation fault: 11

Behavior on CPython 3.9.1(Expected):
work well on the python interpreter(work well on Python 3.9.1)

Step to reproduce:
type "cargo run --release test.py" on the console of Ubuntu 18.04 or MacOS Big Sur 11.7.1
rust version: rustc 1.65.0