error[E0557]: feature has been removed --> $DIR/const-trait-impl-parameter-mismatch.rs:10:30 | LL | #![feature(const_trait_impl, effects)] | ^^^^^^^ feature has been removed | = note: removed in 1.84.0; see for more information = note: removed, redundant with `#![feature(const_trait_impl)]` error[E0049]: associated function `compute` has 0 type parameters but its trait declaration has 1 type parameter --> $DIR/const-trait-impl-parameter-mismatch.rs:19:16 | LL | fn compute() -> u32; | - expected 1 type parameter ... LL | fn compute<'x>() -> u32 { | ^^ found 0 type parameters error: aborting due to 2 previous errors Some errors have detailed explanations: E0049, E0557. For more information about an error, try `rustc --explain E0049`.