error: const `impl` for trait `PartialEq` which is not marked with `#[const_trait]`
  --> $DIR/call-const-trait-method-pass.rs:15:12
   |
LL | impl const PartialEq for Int {
   |            ^^^^^^^^^ this trait is not `const`
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change

error[E0015]: cannot call non-const method `<Int as PartialEq>::eq` in constant functions
  --> $DIR/call-const-trait-method-pass.rs:20:15
   |
LL |         !self.eq(other)
   |               ^^^^^^^^^
   |
   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0015`.