reproduce (this is a W=1 build):
git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
# https://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux.git/commit/?id=bd10b39e2b713a2f9fe8715278e9d4bee9253e24
git remote add gustavoars https://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux.git
git fetch --no-tags gustavoars testing/wfamnae-next20240726-cbc
git checkout bd10b39e2b713a2f9fe8715278e9d4bee9253e24
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-18 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-18 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash