[31m[1mERROR[0m[39m: 
  [31m×[0m I can't find a constructor for `u64`.
  [31m│[0m I need an instance of `u64` to invoke your request handler,
  [31m│[0m `app::handler`.
  [31m│[0m
  [31m│[0m     ╭─[[36;1;4msrc/lib.rs[0m:9:1]
  [31m│[0m  [2m 9[0m │     bp.nest(sub_blueprint());
  [31m│[0m  [2m10[0m │     bp.route(GET, "/parent", f!(crate::handler));
  [31m│[0m     · [35;1m                             ─────────┬────────[0m
  [31m│[0m     ·                  [35;1mThe request handler was registered here[0m
  [31m│[0m  [2m11[0m │     bp
  [31m│[0m     ╰────
  [31m│[0m     ╭─[[36;1;4msrc/lib.rs[0m:25:1]
  [31m│[0m  [2m25[0m │ 
  [31m│[0m  [2m26[0m │ pub fn handler(_x: u64, _y: u32, _z: u16) -> StatusCode {
  [31m│[0m     · [35;1m               ───┬───[0m
  [31m│[0m     ·     [35;1mI don't know how to construct an instance of this input parameter[0m
  [31m│[0m  [2m27[0m │     todo!()
  [31m│[0m     ╰────
  [31m│[0m   [36mhelp:[0m Register a constructor for `u64`.
  [31m│[0m [36m  help: [0mAlternatively, use `Blueprint::prebuilt` to add a
  [31m│[0m         new input parameter of type `u64` to the (generated)
  [31m│[0m         `build_application_state`.

[31m[1mERROR[0m[39m: 
  [31m×[0m I can't find a constructor for `u32`.
  [31m│[0m I need an instance of `u32` to invoke your request handler,
  [31m│[0m `app::handler`.
  [31m│[0m
  [31m│[0m     ╭─[[36;1;4msrc/lib.rs[0m:9:1]
  [31m│[0m  [2m 9[0m │     bp.nest(sub_blueprint());
  [31m│[0m  [2m10[0m │     bp.route(GET, "/parent", f!(crate::handler));
  [31m│[0m     · [35;1m                             ─────────┬────────[0m
  [31m│[0m     ·                  [35;1mThe request handler was registered here[0m
  [31m│[0m  [2m11[0m │     bp
  [31m│[0m     ╰────
  [31m│[0m     ╭─[[36;1;4msrc/lib.rs[0m:25:1]
  [31m│[0m  [2m25[0m │ 
  [31m│[0m  [2m26[0m │ pub fn handler(_x: u64, _y: u32, _z: u16) -> StatusCode {
  [31m│[0m     · [35;1m                        ───┬───[0m
  [31m│[0m     ·     [35;1mI don't know how to construct an instance of this input parameter[0m
  [31m│[0m  [2m27[0m │     todo!()
  [31m│[0m     ╰────
  [31m│[0m   [36mhelp:[0m Register a constructor for `u32`.
  [31m│[0m [36m  help: [0mAlternatively, use `Blueprint::prebuilt` to add a
  [31m│[0m         new input parameter of type `u32` to the (generated)
  [31m│[0m         `build_application_state`.

[31m[1mERROR[0m[39m: 
  [31m×[0m I can't find a constructor for `u16`.
  [31m│[0m I need an instance of `u16` to invoke your request handler,
  [31m│[0m `app::handler`.
  [31m│[0m
  [31m│[0m     ╭─[[36;1;4msrc/lib.rs[0m:9:1]
  [31m│[0m  [2m 9[0m │     bp.nest(sub_blueprint());
  [31m│[0m  [2m10[0m │     bp.route(GET, "/parent", f!(crate::handler));
  [31m│[0m     · [35;1m                             ─────────┬────────[0m
  [31m│[0m     ·                  [35;1mThe request handler was registered here[0m
  [31m│[0m  [2m11[0m │     bp
  [31m│[0m     ╰────
  [31m│[0m     ╭─[[36;1;4msrc/lib.rs[0m:25:1]
  [31m│[0m  [2m25[0m │ 
  [31m│[0m  [2m26[0m │ pub fn handler(_x: u64, _y: u32, _z: u16) -> StatusCode {
  [31m│[0m     · [35;1m                                 ───┬───[0m
  [31m│[0m     ·     [35;1mI don't know how to construct an instance of this input parameter[0m
  [31m│[0m  [2m27[0m │     todo!()
  [31m│[0m     ╰────
  [31m│[0m   [36mhelp:[0m Register a constructor for `u16`.
  [31m│[0m [36m  help: [0mAlternatively, use `Blueprint::prebuilt` to add a
  [31m│[0m         new input parameter of type `u16` to the (generated)
  [31m│[0m         `build_application_state`.
