Derive Debug fails for unsized structs

[ForrestOfBarnes]

rust-analyzer version: 0.3.1506-standalone

rustc version: 1.69.0

relevant settings: N/A

#[derive(Debug)]
struct Foo([u8])

This compiles correctly, but rust-analyzer thinks the derive macro contains an error: "expected &dyn Debug, found &[u8]". Oddly, derive macros for Eq, PartialEq, Ord, and PartialOrd, all function correctly.

[Veykril]

Underlying issue is #11847

[ForrestOfBarnes]

Thank you, I'll close this then.

[HKalbasi]

I think this one is different. &[u8] is not coercible into &dyn Debug since [u8] is unsized, but &&[u8] is coercible. Rustc uses double reference for last field, we should either do the same or use double reference always which I think is harmless.