rust/tests/ui/traits/const-traits/const_derives/derive-const-with-params.stderr

error: const `impl` for trait `PartialEq` which is not marked with `#[const_trait]`
  --> $DIR/derive-const-with-params.rs:7:16
   |
LL | #[derive_const(PartialEq)]
   |                ^^^^^^^^^ 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: `~const` can only be applied to `#[const_trait]` traits
   |
note: `PartialEq` can't be used with `~const` because it isn't annotated with `#[const_trait]`
  --> $SRC_DIR/core/src/cmp.rs:LL:COL

error[E0015]: cannot call non-const operator in constant functions
  --> $DIR/derive-const-with-params.rs:8:23
   |
LL | #[derive_const(PartialEq)]
   |                --------- in this derive macro expansion
LL | pub struct Reverse<T>(T);
   |                       ^
   |
   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants

error[E0015]: cannot call non-const operator in constant functions
  --> $DIR/derive-const-with-params.rs:11:5
   |
LL |     a == b
   |     ^^^^^^
   |
   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants

error: aborting due to 4 previous errors

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