New comment by gbrlsnchs on void-packages repository

https://github.com/void-linux/void-packages/pull/31150#issuecomment-850414909

Comment:
> There can be, I don't think we should make it impossible to install them together...
> 
> To be fair, I don't feel this as much because fish has built in completions already, but still.

I agree. The reason I opened this PR is because I switched from manually installed rustup to the one packaged by Void, and the first thing I noticed was my Cargo completion wasn't working anymore. What do you think is the best solution for this case? Should I keep my rustup template patched locally only? I wouldn't mind, really.