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warning: the feature `contracts` is incomplete and may not be safe to use and/or cause compiler crashes
--> $DIR/contract-captures-via-closure-noncopy.rs:3:12
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LL | #![feature(contracts)]
| ^^^^^^^^^
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= note: see issue #128044 <https://github.com/rust-lang/rust/issues/128044> for more information
= note: `#[warn(incomplete_features)]` on by default
error[E0277]: the trait bound `Baz: std::marker::Copy` is not satisfied in `{closure@$DIR/contract-captures-via-closure-noncopy.rs:12:42: 12:57}`
--> $DIR/contract-captures-via-closure-noncopy.rs:12:1
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LL | #[core::contracts::ensures({let old = x; move |ret:&Baz| ret.baz == old.baz*2 })]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^------------------------------------^^^^
| | |
| | within this `{closure@$DIR/contract-captures-via-closure-noncopy.rs:12:42: 12:57}`
| | this tail expression is of type `{closure@contract-captures-via-closure-noncopy.rs:12:42}`
| unsatisfied trait bound
| required by a bound introduced by this call
|
= help: within `{closure@$DIR/contract-captures-via-closure-noncopy.rs:12:42: 12:57}`, 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:12:42
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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 {
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error: aborting due to 1 previous error; 1 warning emitted
For more information about this error, try `rustc --explain E0277`.
|
