There’s a bit more context over at the register: https://www.theregister.com/2024/09/02/rust_for_linux_maintainer_steps_down/

This is pretty disappointing to read.

A very prescient and thoughtful commentary was written by Drew DeVault.

https://drewdevault.com/2024/08/30/2024-08-30-Rust-in-Linux-revisited.html