error: `~const` can only be applied to `#[const_trait]` traits --> $DIR/issue-92111.rs:20:15 | LL | const fn a(t: T) {} | ^^^^^^ error: `~const` can only be applied to `#[const_trait]` traits --> $DIR/issue-92111.rs:20:15 | LL | const fn a(t: T) {} | ^^^^^^ | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` error[E0493]: destructor of `T` cannot be evaluated at compile-time --> $DIR/issue-92111.rs:20:32 | LL | const fn a(t: T) {} | ^ - value is dropped here | | | the destructor for this type cannot be evaluated in constant functions error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0493`.