GHSA-XQJR-WFX3-GMXV ArrayQueue's push_front is not panic-safe

The safe API arrayqueue::ArrayQueue::pushfront can lead to deallocating uninitialized memory if a panic occurs while invoking the clone method on the passed argument. Specifically, pushfront receives an argument that is intended to be cloned and pushed, whose type implements the Clone trait...

insert_slice_clone can double drop if Clone panics.

Affected versions of this crate used ptr::copy when inserting into the middle of a Vec. When ownership was temporarily duplicated during this copy, it calls the clone method of a user provided element. This issue can result in an element being double-freed if the clone call panics. Commit 20cb73d...