error[E0277]: can't drop `UnconstDrop` in const contexts --> $DIR/const-block-const-bound.rs:20:11 | LL | f(UnconstDrop); | - ^^^^^^^^^^^ the trait `~const Destruct` is not implemented for `UnconstDrop` | | | required by a bound introduced by this call | = note: the trait bound `UnconstDrop: ~const Destruct` is not satisfied note: required by a bound in `f` --> $DIR/const-block-const-bound.rs:6:15 | LL | const fn f(x: T) {} | ^^^^^^^^^^^^^^^ required by this bound in `f` help: consider borrowing here | LL | f(&UnconstDrop); | + LL | f(&mut UnconstDrop); | ++++ error[E0277]: can't drop `NonDrop` in const contexts --> $DIR/const-block-const-bound.rs:22:11 | LL | f(NonDrop); | - ^^^^^^^ the trait `~const Destruct` is not implemented for `NonDrop` | | | required by a bound introduced by this call | = note: the trait bound `NonDrop: ~const Destruct` is not satisfied note: required by a bound in `f` --> $DIR/const-block-const-bound.rs:6:15 | LL | const fn f(x: T) {} | ^^^^^^^^^^^^^^^ required by this bound in `f` help: consider borrowing here | LL | f(&NonDrop); | + LL | f(&mut NonDrop); | ++++ error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0277`.