I initially was interested in Rust because of performance + speed + safety, but now I have to say that cargo is a big selling point for me.
I always used to be scared of compiling software myself because I never seemed to be able to get it to work without endless headaches. Now, I generally find it easy to compile Rust programs if they aren't in my package manager, and with cargo install-update https://github.com/nabijaczleweli/cargo-update I find it easy to keep the software up to date. I have higher confidence that I can get hobbyist Rust software working, and the more Rust software I use, the more familiar I am with the ecosystem and the more comfortable I am.
If this was written in some obscure language I wasn't familiar with, I'd be less confident I would be able to run it at all, let alone keep it updated, and I may not bother even trying to install it.
Also, some languages (like Go, C, C++, Rust) make it easier to get relatively self contained binaries, as opposed to a Python or Perl script with a lot of external dependencies that one has to install and manage.
For a long time, I have wanted to insert the READMEs of my GitHub projects on my static website (to control the theme, to insert asciinema scripts, etc…). The problem is, you can’t insert it verbatim, you need to add things like a bit of yaml metadata at the top or some code to insert the asciinema player.
So I’ve written an awk script to use HTML comments in the README you host on GitHub and insert/remove the small bits that need to differ between GitHub and your site. Why awk? It’s quite fast (see the benchmark session), ubiquitous (don’t add one more dependency in your CI) and felt like a good fit for this.
If that sounds interesting, please give it a try and let me know what you think! It’s really easy to run, you just need to download a small file.