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When encountering a moved value of a type that isn't `Clone` because of unmet obligations, but where all the unmet predicates reference crate-local types, mention them and suggest cloning, as we do in other cases already: ``` error[E0507]: cannot move out of `foo`, a captured variable in an `Fn` closure --> f111.rs:14:25 | 13 | fn do_stuff(foo: Option<Foo>) { | --- captured outer variable 14 | require_fn_trait(|| async { | -- ^^^^^ `foo` is moved here | | | captured by this `Fn` closure 15 | if foo.map_or(false, |f| f.foo()) { | --- | | | variable moved due to use in coroutine | move occurs because `foo` has type `Option<Foo>`, which does not implement the `Copy` trait | note: if `Foo` implemented `Clone`, you could clone the value --> f111.rs:4:1 | 4 | struct Foo; | ^^^^^^^^^^ consider implementing `Clone` for this type ... 15 | if foo.map_or(false, |f| f.foo()) { | --- you could clone this value ```