The main thing I disagree with you on, is that there is a namespace collision because of the package manager, or that there is a namespace collision because bot

The main thing I disagree with you on, is that there is a namespace collision because of the package manager, or that there is a namespace collision because both use Rust. If there is a namespace collision, it should be because they're both tools used by developers. The package manager issue is solved easily by adding something to the package name. As for the language, Rust is shaping up to be more like C++ than Ruby or Python, where the main community is more about the language and the standard library and less about the myriad different uses of it. I think both can keep their names long-term.