reproduce (this is a W=1 build):
        git checkout bdc7f8c5adad50dad2ec762e317f8b212f5782ac
        b4 shazam https://lore.kernel.org/r/20250607-compiletime_assert-v1-1-a8991a9be729@columbia.edu
        # 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