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25 lines
1.1 KiB
Text
25 lines
1.1 KiB
Text
error[E0597]: `*a` does not live long enough
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--> $DIR/destructor-restrictions.rs:8:10
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LL | let a = Box::new(RefCell::new(4));
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| - binding `a` declared here
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LL | *a.borrow() + 1
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| ^---------
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| |
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| borrowed value does not live long enough
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| a temporary with access to the borrow is created here ...
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LL | };
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| -- ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `Ref<'_, i32>`
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| |
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| `*a` dropped here while still borrowed
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= note: the temporary is part of an expression at the end of a block;
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consider forcing this temporary to be dropped sooner, before the block's local variables are dropped
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help: for example, you could save the expression's value in a new local variable `x` and then make `x` be the expression at the end of the block
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LL | let x = *a.borrow() + 1; x
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| +++++++ +++
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0597`.
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