Did you ever have a bad professional experience with Rust?

Hi there! I'm currently employed on a project in Rust, and my team was beginner level in rust at the beginning of the project. However, having one person with a deep understanding of the language was good enough to have the project working and be on tracks. We didn't need that many big refactorings, didn't have many bugs, and all my colleagues were quite quickly at ease with the language.

So it makes me believe that a single really good Rust dev that is eager to share his knowledge and a team that is willing to work in Rust is enough to make a Rust project work. So I wonder, does anybody out there had a bad professional experience with Rust? And why?