error[E0119]: conflicting implementations of trait `std::ops::Add` for type `i32`:
  --> $DIR/const-and-non-const-impl.rs:6:1
   |
LL | impl const std::ops::Add for i32 {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: conflicting implementation in crate `core`:
           - impl std::ops::Add for i32;

error[E0119]: conflicting implementations of trait `std::ops::Add` for type `Int`:
  --> $DIR/const-and-non-const-impl.rs:24:1
   |
LL | impl std::ops::Add for Int {
   | -------------------------- first implementation here
...
LL | impl const std::ops::Add for Int {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Int`

error[E0117]: only traits defined in the current crate can be implemented for arbitrary types
  --> $DIR/const-and-non-const-impl.rs:6:1
   |
LL | impl const std::ops::Add for i32 {
   | ^^^^^^^^^^^-------------^^^^^---
   | |          |                 |
   | |          |                 `i32` is not defined in the current crate
   | |          `i32` is not defined in the current crate
   | impl doesn't use only types from inside the current crate
   |
   = note: define and implement a trait or new type instead

error: aborting due to 3 previous errors

Some errors have detailed explanations: E0117, E0119.
For more information about an error, try `rustc --explain E0117`.