Comment by yjftsjthsd-h

> Apt packages are managed by the OS so its normal they don't get overwritten by tools you download of the internet directly as that could break other apps installed with apt.

I would, however, have expected it to shadow the OS version. That is, I would expect any installer running as your user to install eg. ~/.local/bin/rustc and ignore /usr/bin/rustc (and maybe print a message about making sure that ~/.local/bin takes precedence in your PATH).