You've gotten a couple of other answers, here already. I'll just add that unfortunately I don't have link but there's a podcast interview with Andreas out there

You've gotten a couple of other answers, here already. I'll just add that unfortunately I don't have link but there's a podcast interview with Andreas out there where they go into more detail about this. He said that they tried write some features in Rust and the development team just didn't like working in the language, I think the overall reason was that object-orientated programming was not a first-class citizen in Rust. One other interesting tidbit is that the development team was excited to try Rust, but in practice disliked it, and the reverse was true for Swift.