error[E0277]: can't drop `UnconstDrop` in const contexts --> $DIR/const-block-const-bound.rs:20:9 | LL | f(UnconstDrop); | ^^^^^^^^^^^^^^ the trait `~const Destruct` is not implemented for `UnconstDrop` | = note: the trait bound `UnconstDrop: ~const Destruct` is not satisfied help: consider borrowing here | LL | &f(UnconstDrop); | + LL | &mut f(UnconstDrop); | ++++ error[E0277]: can't drop `NonDrop` in const contexts --> $DIR/const-block-const-bound.rs:22:9 | LL | f(NonDrop); | ^^^^^^^^^^ the trait `~const Destruct` is not implemented for `NonDrop` | = note: the trait bound `NonDrop: ~const Destruct` is not satisfied help: consider borrowing here | LL | &f(NonDrop); | + LL | &mut f(NonDrop); | ++++ error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0277`.