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19 lines
706 B
Plaintext
19 lines
706 B
Plaintext
error[E0499]: cannot borrow `a` as mutable more than once at a time
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--> $DIR/feature-gate-if-let-rescope.rs:24:9
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LL | if let None = a.f().as_ref() {
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| -----
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| first mutable borrow occurs here
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| a temporary with access to the first borrow is created here ...
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...
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LL | a.f().unwrap();
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| ^ second mutable borrow occurs here
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LL |
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LL | };
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| - ... and the first borrow might be used here, when that temporary is dropped and runs the destructor for type `Option<B<'_, 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 E0499`.
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