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19 lines
976 B
Plaintext
19 lines
976 B
Plaintext
error[E0038]: the trait `AsyncFnMut` cannot be made into an object
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--> $DIR/dyn-pos.rs:3:16
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LL | fn foo(x: &dyn AsyncFn()) {}
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| ^^^^^^^^^ `AsyncFnMut` cannot be made into an object
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note: for a trait to be "dyn-compatible" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
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--> $SRC_DIR/core/src/ops/async_function.rs:LL:COL
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= note: the trait cannot be made into an object because it contains the generic associated type `CallRefFuture`
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= help: the following types implement the trait, consider defining an enum where each variant holds one of these types, implementing `AsyncFnMut` for this new enum and using it instead:
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&F
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&mut F
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std::boxed::Box<F, A>
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0038`.
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