error: #[derive(FromRequest)] only supports generics when used with #[from_request(via)]
 --> tests/from_request/fail/generic_without_via_rejection.rs:6:18
  |
6 | struct Extractor<T>(T);
  |                  ^

error[E0277]: the trait bound `fn(Extractor<()>) -> impl Future<Output = ()> {foo}: Handler<_, _, _>` is not satisfied
  --> tests/from_request/fail/generic_without_via_rejection.rs:11:46
   |
11 |     Router::<(), Body>::new().route("/", get(foo));
   |                                          --- ^^^ the trait `Handler<_, _, _>` is not implemented for fn item `fn(Extractor<()>) -> impl Future<Output = ()> {foo}`
   |                                          |
   |                                          required by a bound introduced by this call
   |
   = note: Consider using `#[axum::debug_handler]` to improve the error message
   = help: the trait `Handler<T, S, B2>` is implemented for `Layered<L, H, T, S, B, B2>`
note: required by a bound in `axum::routing::get`
  --> $WORKSPACE/axum/src/routing/method_routing.rs
   |
   | top_level_handler_fn!(get, GET);
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `axum::routing::get`
   = note: this error originates in the macro `top_level_handler_fn` (in Nightly builds, run with -Z macro-backtrace for more info)