# git rev-parse -q --verify b3b71d0e3c63a729d9d98c74e0a2db10b4133d9e^{commit}
b3b71d0e3c63a729d9d98c74e0a2db10b4133d9e
already have revision, skipping fetch
# git checkout -q -f -B kisskb b3b71d0e3c63a729d9d98c74e0a2db10b4133d9e
# git clean -qxdf
# < git log -1
# commit b3b71d0e3c63a729d9d98c74e0a2db10b4133d9e
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Mon Jan 7 11:44:26 2019 +0100
# 
#     Linux 4.20.1-rc1
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 b3b71d0e3c63a729d9d98c74e0a2db10b4133d9e
# < make -s -j 80 ARCH=x86 O=/kisskb/build/stable-rc-4.20_x86_64_defconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-  x86_64_defconfig
# make -s -j 80 ARCH=x86 O=/kisskb/build/stable-rc-4.20_x86_64_defconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-  
You are building kernel with non-retpoline compiler.
Please update your compiler.
make[1]: *** [arch/x86/Makefile:304: checkbin] Error 1
make: *** [Makefile:152: sub-make] Error 2
Command 'make -s -j 80 ARCH=x86 O=/kisskb/build/stable-rc-4.20_x86_64_defconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/stable-rc-4.20_x86_64_defconfig_x86_64
# Build took: 0:00:06.366775