Implement the trait debug for std::collections::BinaryHeap

[gbersac]

If I run the following code :

use std::collections::BinaryHeap;

#[derive(Debug)]
pub struct MyStruct
{
    bh: BinaryHeap<i32>,
}

fn main() {
    let m = MyStruct {
        bh: BinaryHeap::new(),
    };
}

I get the following error :

test.rs:6:2: 6:21 error: the trait `core::fmt::Debug` is not implemented for the type `collections::binary_heap::BinaryHeap<i32>` [E0277]
test.rs:6   bh: BinaryHeap<i32>,
            ^~~~~~~~~~~~~~~~~~~~~~~
test.rs:3:10: 3:15 note: in expansion of #[derive_Debug]
test.rs:3:10: 3:15 note: expansion site
test.rs:6:2: 6:21 note: `collections::binary_heap::BinaryHeap<i32>` cannot be formatted using `:?`; if it is defined in your crate, add `#[derive(Debug)]` or manually implement it
test.rs:6   bh: BinaryHeap<i32>,
            ^~~~~~~~~~~~~~~~~~~~~~~
test.rs:3:10: 3:15 note: in expansion of #[derive_Debug]
test.rs:3:10: 3:15 note: expansion site
error: aborting due to previous error

I don't see any reason for the trait Debug not to be implemented for BinaryHeap. If seeing the nodes of it is a problem, at least a ByanryHeap[size: x] could be enough.

[Gankra]

Should be fine to display the elements -- probably an oversight?

[gbersac]

Probably an oversight. Implementing the solution shouldn't take more than a line (few at most) and it is annoying that you can't easily implement debug for struct owning one BinaryHeap.