mismatched types, expected ‘u64’ but got ‘u32’

Summary

should compile

Reproducer

I tried this code:

#![feature(no_core, lang_items)]
#![no_core]

#[lang = "sized"]
pub trait Sized {}

impl u32 {
    pub const BITS: u32 = 32;
}

fn from_u64(mut v: u64) -> u64 {
    let mut sz: u64 = 0;
    while v > 0 {
        v >>= <u32>::BITS;
        sz += 1;
    }
    sz
}

fn main() {
    let _ = from_u64(5);
}

Does the code make use of any (1.49) nightly feature ?

• Nightly

Godbolt link

No response

Actual behavior

The current behavior is...

test.rs:14:9: error: mismatched types, expected ‘u64’ but got ‘u32’ [E0308]
14 | v >>= ::BITS;
| ^ ~

Expected behavior

I expected to see...

GCC Version

HEAD