To be safe, should probably output grep to a file, then cat that.

No rights preserved?

https://www.rust-lang.org/tools/install

Why is it the canon way to install rust by piping curl output to sh???

The article is dumb. It states:

If you count Android and Chrome OS as Linux, which I do, the Linux desktop accounts for 44.98 percent of the end user market.

Linux != Linux desktop, and that's the point of the article, but in their premise they're equating them.