I've wanted to start a project in Rust, but for the ideas that I have (and the time that I have for a hobby project, as for work it's rarely starting a new one, but continuing and existing one), Rust seemed a viable, but not ideal alternative to just doing it all in C++, for which I already have enough knowledge and very well proven libraries. I will look again soon, and I will keep looking because eventually something will surely click, it's just that so far, the time has not been right.
Note that my point is not that it's unusable for everyone. Just that it's false that "some people just can't seem to let [C or C++] go", as the previous comment said. I can't let go something that works well for something that doesn't, given the projects that I have to work on.
Precisely, Gary Bernhardt has given a talk on ideology. I don't think he's precisely someone who thinks in absolutes. It's just preaching that some stuff is (probably) used more than it should. I've seen way, way, way worse projects that over engineered things and made things slow and unmanageable, than the opposite. Of course, everyone has seen different things, and our perceptions are amplified and biased by that.