> I don't think anyone gets to say that Rust isn't popular anymore. Especially considering it's now in the Linux kernel.

Popular amongst Rust fans, certainly. Popular amongst employers, no. It's still barely a rounding error for employers.

And there are 1.5M lines of code of Rust in Android [1].

[1] https://www.theregister.com/2022/12/02/android_google_rust/

Playing devil's advocate: what's now in the Linux kernel is the infrastructure to allow writing code in Rust, but AFAIK for now nothing uses it (there's Asahi Lina's Rust driver for the Apple M1/M2 GPU, but it's still out-of-tree).

I find it likely that Rust in the Linux kernel will not be used for anything important (other than architecture-specific code) until either it can be compiled using GCC (either the GCC backend for the Rust compiler, or the Rust frontend for the GCC compiler), or the LLVM backend supports every single architecture supported by the Linux kernel (or the Linux kernel loses support for the architectures the LLVM backend doesn't support).

Android fork of Linux kernel uses it. Bluetooth stack was rewritten in Rust for Android 12, and the new virtualization stack in Android 13 is based in crosvm, also a Rust.