[Creating objdir /syzkaller/managers/main/kernel/obj/syzkaller/managers/main/kernel/amd64.amd64...]
--- kernel-toolchain ---
make[1]: "/syzkaller/managers/main/kernel/Makefile.inc1" line 364: SYSTEM_COMPILER: libclang will be built for bootstrapping a cross-compiler.
make[1]: "/syzkaller/managers/main/kernel/Makefile.inc1" line 369: SYSTEM_LINKER: libclang will be built for bootstrapping a cross-linker.
make[1]: "/syzkaller/managers/main/kernel/Makefile.inc1" line 1012: if-less else
make[1]: "/syzkaller/managers/main/kernel/Makefile.inc1" line 1014: if-less endif
make[1]: Fatal errors encountered -- cannot continue
make[1]: stopped in /syzkaller/managers/main/kernel

make: stopped in /syzkaller/managers/main/kernel