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error[E0038]: the trait `Trait` is not dyn compatible
--> $DIR/not-dyn-compatible.rs:27:30
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LL | let dyn_object: &dyn Trait = &Struct(64);
| ^^^^^ `Trait` is not dyn compatible
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note: for a trait to be dyn compatible it needs to allow building a vtable
for more information, visit <https://doc.rust-lang.org/reference/items/traits.html#dyn-compatibility>
--> $DIR/not-dyn-compatible.rs:14:26
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LL | trait Trait {
| ----- this trait is not dyn compatible...
...
LL | unsafe extern "C" fn dyn_method_ref(&self, mut ap: ...) -> u64 {
| ^^^^^^^^^^^^^^ ...because method `dyn_method_ref` is C-variadic
= help: consider moving `dyn_method_ref` to another trait
= help: only type `Struct` implements `Trait`; consider using it directly instead.
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0038`.
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