21 lines
970 B
Plaintext
21 lines
970 B
Plaintext
error[E0502]: cannot borrow `heap` as immutable because it is also borrowed as mutable
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--> $DIR/issue-47646.rs:9:30
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LL | let borrow = heap.peek_mut();
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| --------------- mutable borrow occurs here
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LL |
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LL | match (borrow, ()) {
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| ------------ a temporary with access to the mutable borrow is created here ...
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LL | (Some(_), ()) => {
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LL | println!("{:?}", heap);
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| ^^^^ immutable borrow occurs here
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...
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LL | };
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| - ... and the mutable borrow might be used here, when that temporary is dropped and runs the destructor for type `(Option<PeekMut<'_, i32>>, ())`
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= note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
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error: aborting due to previous error
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For more information about this error, try `rustc --explain E0502`.
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