reproduce (this is a W=1 build):
        # https://github.com/zen-kernel/zen-kernel/commit/ecdb5900a34a8291a8457c0e29cca911c55dbf67
        git remote add zen https://github.com/zen-kernel/zen-kernel
        git fetch --no-tags zen 7.2/prjc
        git checkout ecdb5900a34a8291a8457c0e29cca911c55dbf67

        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-22 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-22 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash kernel/