Rust fails to optimize const slice

I tried this code:

const fn test() -> &'static [&'static str] {
    const ITEMS: &[&str] = const {
        std::slice::from_ref(&[
            "hello",
            "world",
        ][0])
    };

    ITEMS
}

#[inline(never)]
pub fn main() {
    std::hint::black_box(test());
}

I expected to see this happen:

The string world to be pruned from the final binary.

Instead, this happened:

https://godbolt.org/z/WTM5jz987

The array was not pruned at all.

Meta

rustc --version --verbose:

godbolt rustc nightly.

Start by reproducing the provided const-slice example with the nightly rustc version and inspect the Godbolt output linked in the issue. Trace the compiler's optimization of the array containing "hello" and "world"; done means the unused "world" string is pruned from the final binary without changing the expected result.