RA reports "expected &dyn Debug, found &i32", rustc is fine with it

[djc]

rust-analyzer version: rust-analyzer version: 0.3.2089-standalone (0f7f68d 2024-08-27)

rustc version: rustc 1.80.0 (051478957 2024-07-21)

editor or extension: VS Code

relevant settings: N/A

repository link (if public, optional): https://github.com/tokio-rs/tracing

code snippet to reproduce:

struct FmtBitset(u64);

impl fmt::Debug for FmtBitset {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        let mut set = f.debug_set();
        for bit in 0..64 {
            // if the `bit`-th bit is set, add it to the debug set
            if self.0 & (1 << bit) != 0 {
                set.entry(&bit);
            }

        }
        set.finish()
    }
}

[lnicola]

Duplicate of #11847.