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issue-47646.rs
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use
std
::
collections
::
BinaryHeap
;
fn
main
()
{
let
mut
heap
:
BinaryHeap
<
i32
>
=
BinaryHeap
::
new
();
let
borrow
=
heap
.
peek_mut
();
match
(
borrow
,
())
{
(
Some
(
_
),
())
=>
{
println
!(
"{:?}"
,
heap
);
//~ ERROR cannot borrow `heap` as immutable
}
_
=>
{}
};
}