[31m[1mERROR[0m[39m: 
  [31m×[0m I can't use the type returned by this request handler to create an HTTP
  [31m│[0m response.
  [31m│[0m It doesn't implement `pavex::response::IntoResponse`.
  [31m│[0m
  [31m│[0m     ╭─[[36;1;4msrc/lib.rs[0m:37:1]
  [31m│[0m  [2m37[0m │         .error_handler(f!(crate::error_handler));
  [31m│[0m  [2m38[0m │     bp.route(GET, "/home", f!(crate::handler))
  [31m│[0m     · [35;1m                           ─────────┬────────[0m
  [31m│[0m     ·                  [35;1mThe request handler was registered here[0m
  [31m│[0m  [2m39[0m │         .error_handler(f!(crate::error_handler));
  [31m│[0m     ╰────
  [31m│[0m [36m  help: [0mImplement `pavex::response::IntoResponse` for
  [31m│[0m         `app::MyCustomOutputType`.

[31m[1mERROR[0m[39m: 
  [31m×[0m I can't use the type returned by this wrapping middleware to create an
  [31m│[0m HTTP response.
  [31m│[0m It doesn't implement `pavex::response::IntoResponse`.
  [31m│[0m
  [31m│[0m     ╭─[[36;1;4msrc/lib.rs[0m:33:1]
  [31m│[0m  [2m33[0m │     let mut bp = Blueprint::new();
  [31m│[0m  [2m34[0m │     bp.wrap(f!(crate::wrapping_middleware))
  [31m│[0m     · [35;1m            ───────────────┬──────────────[0m
  [31m│[0m     ·                            [35;1m╰── The wrapping middleware was registered here[0m
  [31m│[0m  [2m35[0m │         .error_handler(f!(crate::error_handler));
  [31m│[0m     ╰────
  [31m│[0m [36m  help: [0mImplement `pavex::response::IntoResponse` for
  [31m│[0m         `app::MyCustomOutputType`.

[31m[1mERROR[0m[39m: 
  [31m×[0m I can't use the type returned by this error handler to create an HTTP
  [31m│[0m response.
  [31m│[0m It doesn't implement `pavex::response::IntoResponse`.
  [31m│[0m
  [31m│[0m     ╭─[[36;1;4msrc/lib.rs[0m:34:1]
  [31m│[0m  [2m34[0m │     bp.wrap(f!(crate::wrapping_middleware))
  [31m│[0m  [2m35[0m │         .error_handler(f!(crate::error_handler));
  [31m│[0m     · [35;1m                       ────────────┬───────────[0m
  [31m│[0m     ·                   [35;1mThe error handler was registered here[0m
  [31m│[0m  [2m36[0m │     bp.constructor(f!(crate::request_scoped), Lifecycle::RequestScoped)
  [31m│[0m     ╰────
  [31m│[0m [36m  help: [0mImplement `pavex::response::IntoResponse` for
  [31m│[0m         `app::MyCustomOutputType`.

[31m[1mERROR[0m[39m: 
  [31m×[0m I can't use the type returned by this error handler to create an HTTP
  [31m│[0m response.
  [31m│[0m It doesn't implement `pavex::response::IntoResponse`.
  [31m│[0m
  [31m│[0m     ╭─[[36;1;4msrc/lib.rs[0m:36:1]
  [31m│[0m  [2m36[0m │     bp.constructor(f!(crate::request_scoped), Lifecycle::RequestScoped)
  [31m│[0m  [2m37[0m │         .error_handler(f!(crate::error_handler));
  [31m│[0m     · [35;1m                       ────────────┬───────────[0m
  [31m│[0m     ·                   [35;1mThe error handler was registered here[0m
  [31m│[0m  [2m38[0m │     bp.route(GET, "/home", f!(crate::handler))
  [31m│[0m     ╰────
  [31m│[0m [36m  help: [0mImplement `pavex::response::IntoResponse` for
  [31m│[0m         `app::MyCustomOutputType`.

[31m[1mERROR[0m[39m: 
  [31m×[0m I can't use the type returned by this error handler to create an HTTP
  [31m│[0m response.
  [31m│[0m It doesn't implement `pavex::response::IntoResponse`.
  [31m│[0m
  [31m│[0m     ╭─[[36;1;4msrc/lib.rs[0m:38:1]
  [31m│[0m  [2m38[0m │     bp.route(GET, "/home", f!(crate::handler))
  [31m│[0m  [2m39[0m │         .error_handler(f!(crate::error_handler));
  [31m│[0m     · [35;1m                       ────────────┬───────────[0m
  [31m│[0m     ·                   [35;1mThe error handler was registered here[0m
  [31m│[0m  [2m40[0m │     bp
  [31m│[0m     ╰────
  [31m│[0m [36m  help: [0mImplement `pavex::response::IntoResponse` for
  [31m│[0m         `app::MyCustomOutputType`.