axum extratctor in rust nighty creates clippy error

[jb-alvarado]

Hello, sorry the title don't say much!

I have this extractor:

pub async fn extract(req: &mut Request) -> Result<HashSet<Role>, Response> {
    let Some(auth) = req.headers().get("authorization") else {
        req.extensions_mut().insert(UserMeta::new(-1, vec![]));
        return Ok(HashSet::from([Role::Guest]));
    };

    let Some((scheme, token)) = auth
        .to_str()
        .ok()
        .and_then(|value| value.trim().split_once(' '))
    else {
        warn!("Malformed or invalid authorization header");
        return Err(ServiceError::Unauthorized.into_response());
    };

    if !scheme.eq_ignore_ascii_case("bearer") {
        warn!("Unsupported authorization scheme: {scheme}");
        return Err(ServiceError::Unauthorized.into_response());
    }

    match auth::decode_jwt(token).await {
        Ok(claims) => {
            let mut authorities = HashSet::with_capacity(1);
            authorities.insert(claims.role.clone());

            req.extensions_mut()
                .insert(UserMeta::new(claims.id, claims.channels));

            Ok(authorities)
        }
        Err(e) => {
            error!("JWT decode error: {e:?}");
            Err(ServiceError::Unauthorized.into_response())
        }
    }
}

In current stable compiler that works fine, but when I switch to nightly clippy is a bit more strict and prints this error:

the `Err`-variant returned from this function is very large
try reducing the size of `axum::http::Response<axum::body::Body>`, for example by boxing large elements or replacing it with `Box<axum::http::Response<axum::body::Body>>`
for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#result_large_err
`-D clippy::result-large-err` implied by `-D clippy::perf`
to override `-D clippy::perf` add `#[allow(clippy::result_large_err)]`

Supposedly this is not a big issue and I could ignore it with #[allow(clippy::result_large_err)]. But I wonder if there is a better solution?