tests/ui/contracts/contract-captures-via-closure-noncopy.stderr

error[E0277]: the trait bound `Baz: std::marker::Copy` is not satisfied in `{closure@$DIR/contract-captures-via-closure-noncopy.rs:13:42: 13:57}`
  --> $DIR/contract-captures-via-closure-noncopy.rs:13:1
   |
LL | #[core::contracts::ensures({let old = x; move |ret:&Baz| ret.baz == old.baz*2 })]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^------------------------------------^^^^
   | |                                        |
   | |                                        within this `{closure@$DIR/contract-captures-via-closure-noncopy.rs:13:42: 13:57}`
   | |                                        this tail expression is of type `{closure@contract-captures-via-closure-noncopy.rs:13:42}`
   | unsatisfied trait bound
   | required by a bound introduced by this call
   |
   = help: within `{closure@$DIR/contract-captures-via-closure-noncopy.rs:13:42: 13:57}`, the trait `std::marker::Copy` is not implemented for `Baz`
note: required because it's used within this closure
  --> $DIR/contract-captures-via-closure-noncopy.rs:13:42
   |
LL | #[core::contracts::ensures({let old = x; move |ret:&Baz| ret.baz == old.baz*2 })]
   |                                          ^^^^^^^^^^^^^^^
note: required by a bound in `build_check_ensures`
  --> $SRC_DIR/core/src/contracts.rs:LL:COL
help: consider annotating `Baz` with `#[derive(Copy)]`
   |
LL + #[derive(Copy)]
LL | struct Baz {
   |

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0277`.