Document does not show function return type which use keyword impl

[ZhouHansen]

My function is:

fn batcher() -> impl Fn(usize) -> () {
// ...
}

I run cargo doc --open, the document of this function lacks of return type:

pub fn batcher() -> 

cargo version: cargo 1.29.0-nightly

[alexcrichton]

Thanks for the report! I think that this may be a bug with rustdoc rather than Cargo, so mind opening an issue against https://github.com/rust-lang/rust where the source of rustdoc lives? Thanks!

[ehuss]

This was fixed in rust-lang/rust#53541 and is available on beta (1.30).

[alexcrichton]

Ah ok great! In that case I'll go ahead and close.