[tatref]

The target architectures of the rust compiler are very limited compared to GCC.

So if you port some core functionality of the kernel to rust, that would make rust a hard dependency for the whole kernel.

[fault1]

OTOH, it may cause companies to invest in creating a well maintained Rust frontend for gcc. People have already done much of the grunt work for this, so it seems like it's just a matter of manpower, and something that acceptance into the edges of the kernel might cause more investment in.

[megous]

You missed the point.