error[E0308]: mismatched types
  --> $DIR/inference-behavior-change-deref.rs:34:18
   |
LL |     let z: u32 = y;
   |            ---   ^ expected `u32`, found `i32`
   |            |
   |            expected due to this
   |
help: you can convert an `i32` to a `u32` and panic if the converted value doesn't fit
   |
LL |     let z: u32 = y.try_into().unwrap();
   |                   ++++++++++++++++++++

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0308`.