[Matthias247]

Based on my experience with feature flags on some projects that made extensive use of them Rust is definitely also vulnerable to this issue. In the projects also not all configurations and feature combinations had been tested, and some specific configurations caused compilation to break.

Good CI configuration can definitely help to catch these issues, but it's obviously an extra effort for projects to set up. The alternative could be to simply avoid feature flags and always compile everything, which depending on the project might or might not be the better option.