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41 lines
1.7 KiB
Plaintext
41 lines
1.7 KiB
Plaintext
error[E0038]: the trait `Bar` is not dyn compatible
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--> $DIR/mention-correct-dyn-incompatible-trait.rs:19:15
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LL | let test: &mut dyn Bar = &mut thing;
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| ^^^^^^^^^^^^ `Bar` is not dyn compatible
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note: for a trait to be dyn compatible it needs to allow building a vtable
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for more information, visit <https://doc.rust-lang.org/reference/items/traits.html#dyn-compatibility>
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--> $DIR/mention-correct-dyn-incompatible-trait.rs:4:8
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LL | fn foo<T>(&self, val: T);
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| ^^^ ...because method `foo` has generic type parameters
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...
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LL | trait Bar: Foo { }
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| --- this trait is not dyn compatible...
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= help: consider moving `foo` to another trait
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= help: only type `Thing` implements `Bar`; consider using it directly instead.
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error[E0038]: the trait `Bar` is not dyn compatible
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--> $DIR/mention-correct-dyn-incompatible-trait.rs:19:30
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LL | let test: &mut dyn Bar = &mut thing;
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| ^^^^^^^^^^ `Bar` is not dyn compatible
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note: for a trait to be dyn compatible it needs to allow building a vtable
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for more information, visit <https://doc.rust-lang.org/reference/items/traits.html#dyn-compatibility>
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--> $DIR/mention-correct-dyn-incompatible-trait.rs:4:8
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LL | fn foo<T>(&self, val: T);
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| ^^^ ...because method `foo` has generic type parameters
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...
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LL | trait Bar: Foo { }
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| --- this trait is not dyn compatible...
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= help: consider moving `foo` to another trait
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= help: only type `Thing` implements `Bar`; consider using it directly instead.
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= note: required for the cast from `&mut Thing` to `&mut dyn Bar`
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error: aborting due to 2 previous errors
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For more information about this error, try `rustc --explain E0038`.
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