v0.4.3

• Fix various memory unsafety bugs, mostly related to panics that happen while dropping an element. Also see GHSA-mr2v-63pc-gmr4
  • Fix panic-safety unsoundness in BitVecCore::clear in #51 (thanks @tooson9010-spec)
  • Fix panic-safety unsoundness in extend_from_slice (in 7f82e0e0)
  • Fix panic-safety unsoundness in retain & retain_indices (in 86ed705)
  • Fix clear to store correct num_elements even when drops panic (in 2c517be1)
  • Fix invalid reborrow (under stacked borrow model) in OptionCore (in 645f7479)
  • Fix BitVecCore (re)allocations for allocation sizes > isize::MAX (in 27c1e5b4)
  • Add warning to Core docs that the trait should be unsafe (this will be changed in the next major version)
• Internal improvements to avoid these issues in the future. E.g. more tests, run Miri for unwind tests, harden certain functions against corrupted metadata, ...
• Fix BitVecCore::clone leaking elements if T::clone panics (in a6f632e6)
• Improve BitVecCore::drop to always deallocate own memory, even if T::drop panics (in 702aa80)
• Fix some doc comments
• Fix potential overflow in reserve_for (in 440ce89)
• Fix OptionCore for uninhabited types (in a25224b)