Rust – memcpy is backwards (silent breaking change)
internals.rust-lang.org
internals.rust-lang.org
However, I will point out that by closing the revert request with the rationale "I'm going to suggest that discussion on the next step happen in the ongoing discuss thread", aturon is moving the status quo. Now instead of having a discussion about why this breaking change should be made, they're having a discussion about why this breaking change should [not] be reverted thus further breaking code which has been updated.