error[E0277]: the trait bound `bool: FromRequestParts<()>` is not satisfied --> tests/debug_handler/fail/argument_not_extractor.rs:4:23 | 4 | async fn handler(foo: bool) {} | ^^^^ the trait `FromRequestParts<()>` is not implemented for `bool` | = help: the following other types implement trait `FromRequestParts`: <() as FromRequestParts> <(T1, T2) as FromRequestParts> <(T1, T2, T3) as FromRequestParts> <(T1, T2, T3, T4) as FromRequestParts> <(T1, T2, T3, T4, T5) as FromRequestParts> <(T1, T2, T3, T4, T5, T6) as FromRequestParts> <(T1, T2, T3, T4, T5, T6, T7) as FromRequestParts> <(T1, T2, T3, T4, T5, T6, T7, T8) as FromRequestParts> and 25 others = note: required for `bool` to implement `FromRequest<(), Body, axum_core::extract::private::ViaParts>` note: required by a bound in `__axum_macros_check_handler_0_from_request_check` --> tests/debug_handler/fail/argument_not_extractor.rs:3:1 | 3 | #[debug_handler] | ^^^^^^^^^^^^^^^^ required by this bound in `__axum_macros_check_handler_0_from_request_check` 4 | async fn handler(foo: bool) {} | ---- required by a bound in this = note: this error originates in the attribute macro `debug_handler` (in Nightly builds, run with -Z macro-backtrace for more info)