numba: TypeError: compile_kernel() got an unexpected keyword argument 'boundscheck'

Hi, I am quite new to numba and was trying to play with it. Thus, I was trying to run the following simple example:

from numba import jit, cuda 
import numpy as np 
import os

# function optimized to run on gpu
@jit(target ='cuda')
def func2(a):
    for i in range(10000000):
        a[i]+= 1

if __name__ == '__main__':
    n = 10000000
    a = np.ones(n, dtype=np.float64)
    b = np.ones(n, dtype=np.float32)

    func2(a)
    os._exit(0)

but for some reason I am getting the TypeError:

TypeError: compile_kernel() got an unexpected keyword argument 'boundscheck'

I checked on the web for similar issues but I did not really found anything relevant. Any idea what might be wrong.

Thanks.

System info: Python 3.8 Windows 10 Numba 0.50