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error[E0277]: the size for values of type `(dyn std::ops::Fn() -> u32 + 'static)` cannot be known at compilation time
--> $DIR/issue-24446.rs:2:17
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LL | static foo: dyn Fn() -> u32 = || -> u32 {
| ^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
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= help: the trait `std::marker::Sized` is not implemented for `(dyn std::ops::Fn() -> u32 + 'static)`
= note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.
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