error[E0119]: conflicting implementations of trait `TryFrom<Ty>` for type `u8`
  --> $DIR/conflicting-impls.rs:12:1
   |
LL | impl TryFrom<Ty> for u8 {
   | ----------------------- first implementation here
...
LL | impl TryFrom<Ty> for u8 {
   | ^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `u8`

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0119`.