reproduce (this is a W=1 build):
        # https://github.com/AsahiLinux/linux/commit/2737b7a00c464473c1e894ef9a46eb897578ab6b
        git remote add asahilinux https://github.com/AsahiLinux/linux
        git fetch --no-tags asahilinux pr/279
        git checkout 2737b7a00c464473c1e894ef9a46eb897578ab6b
        # 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