Automatically determining the right Rust version to use.
The kernel currently only supports one Rust version at a time. It would be great to support several Rust versions at a time so that the right one is picked to compile a given kernel.
Apparently hard to do in the legacy system, but perhaps it is possible to have a single "universal" image with a rustc binary that redirects to the right one. In other words, for the purposes of KernelCI, Rust would have a single toolchain version.
Enable KUnit tests.
i.e. CONFIG_RUST_KERNEL_DOCTESTS.
Nice to have (not critical, we could workaround if needed, etc.)
Low priority (we will likely not use them in the end)
Done (stabilized, fixed, not needed anymore, etc.)