@anotherwalther It could be also that checking the details would require reverse engineering huge chunks of Rust code base, which is simply not possible to commit into. Some people might use Rust if the barrier is not too high, but not all people are particularly excited about it, which is a fair position.
It could be also just my own beliefs but I got impression from some Rust posts sometimes that some people think that there would be some kind of large-scale plan to reimplement Linux with Rust. It might be something that Microsoft and Google would like to happen but otherwise such plan does not exist.
There is neither a plan to not do it. The point is that we look at best for Linux maybe few weeks ahead and the overall result is distributed consensus.
That leads to the conclusion that only way to increase Rust adaptation is to make it lower hanging fruit than it is today. Documentation is a great starting point.