StdRng seems to hang on ARM target

[paulkernfeld]

Hi, I'm working on a simple app for the STM32F3Discovery board. The target is thumbv7em-none-eabihf. I was able use SmallRng successfully, but the following code hangs forever when it gets to the refill_wide part in next_u32. I'm using Rust 1.46 and rand 0.7.3.

use rand::{RngCore, SeedableRng};
use rand::rngs::StdRng;

let mut rng = StdRng::seed_from_u64(0);
rng.next_u32();

[dhardy]

More interesting is to know the versions of rand_chacha and ppv-lite86.

@kazcw

[paulkernfeld]

I'm on rand_chacha 0.2.2 and ppv-lite86 0.2.9. I made a repo that reproduces the issue here.

[dhardy]

This should eventually get fixed by #934. In the mean-time, I'm going to close this since no one appears interested in addressing this issue directly.