25 lines
1,010 B
Text
25 lines
1,010 B
Text
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error[E0308]: mismatched types
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--> $DIR/suggest-box.rs:4:47
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LL | let _x: Box<dyn Fn() -> Result<(), ()>> = || {
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| _______________________________________________^
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LL | | Err(())?;
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LL | | Ok(())
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LL | | };
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| |_____^ expected struct `std::boxed::Box`, found closure
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= note: expected type `std::boxed::Box<dyn std::ops::Fn() -> std::result::Result<(), ()>>`
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found type `[closure@$DIR/suggest-box.rs:4:47: 7:6]`
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= note: for more information about the distinction between the stack and the heap, read https://doc.rust-lang.org/book/ch15-01-box.html, https://doc.rust-lang.org/rust-by-example/std/box.html and https://doc.rust-lang.org/std/boxed/index.html
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help: you can store this in the heap calling `Box::new`
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LL | let _x: Box<dyn Fn() -> Result<(), ()>> = Box::new(|| {
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LL | Err(())?;
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LL | Ok(())
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LL | });
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error: aborting due to previous error
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For more information about this error, try `rustc --explain E0308`.
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