reproduce (this is a W=1 build): git remote add powerpc https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git git fetch powerpc next git checkout powerpc/next b4 shazam https://lore.kernel.org/r/20241002010205.1341915-5-mathieu.desnoyers@efficios.com # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash CLIPPY=1 rustdoc