Due to its erratic development and the much-delayed release of Rust 1.0, I fear that many people have associated Rust with frequent breaking changes, even if that is no longer the case. It's much like the "Java is slow" fallacy; it may have been true in Java's very early days, but it hasn't been the case for many, many years. Yet the misconception still persists, even to this day. This is the sort of taint that a language will find very hard to shake. The "Rust suffers from breaking changes" misconception is very ingrained in the minds of many programmers now.