CC: Linux Memory Management List <linux-mm(a)kvack.org&gt; TO: Wedson Almeida Filho <wedsonaf(a)google.com&gt; CC: Miguel Ojeda <ojeda(a)kernel.org&gt; CC: Alex Gaynor <alex.gaynor(a)gmail.com&gt; CC: Finn Behrens <me(a)kloenk.de&gt; CC: Sven Van Asbroeck <thesven73(a)gmail.com&gt; CC: Gary Guo <gary(a)garyguo.net&gt; CC: Wayne Campbell <wcampbell1995(a)gmail.com&gt; Hi Wedson, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: b3c0a155ef77550d48f6eb7c6fdd6075764a5622 commit: fe7751c4f8fce1bd860b5f3f85513f3d2db956ce [634/4212] [RFC] drivers: android: Binder IPC in Rust config: arm64-randconfig-r031-20220207 (https://download.01.org/0day-ci/archive/20220208/202202080112.7LbYVWJm-lk...) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 6daaf5a44925592c764c59219b0024ee06317028) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi... git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout fe7751c4f8fce1bd860b5f3f85513f3d2db956ce # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): ld.lld: error: rust/built-in.a(core.o) is incompatible with aarch64elfb ld.lld: error: rust/built-in.a(compiler_builtins.o) is incompatible with aarch64elfb ld.lld: error: rust/built-in.a(alloc.o) is incompatible with aarch64elfb ld.lld: error: rust/built-in.a(kernel.o) is incompatible with aarch64elfb ld.lld: error: rust/built-in.a(build_error.o) is incompatible with aarch64elfb --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org