Long parameter lists cause core dumped


If a  function takes long parameter lists, the rustpython  reports a core dumped

test.py
```
def f(*args): return len(args)
f(*([0]*(2**32+1)))
```
Crash message:
```
memory allocation of 34359738376 bytes failed
Aborted (core dumped)

```


Environment:
Ubuntu 18.04
rustpython v0.2.0
