Lineage 18 crosshatch build error

PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=11
LINEAGE_VERSION=18.0-20201212-UNOFFICIAL-crosshatch
TARGET_PRODUCT=lineage_crosshatch
TARGET_BUILD_VARIANT=userdebug
TARGET_BUILD_TYPE=release
TARGET_ARCH=arm64
TARGET_ARCH_VARIANT=armv8-a
TARGET_CPU_VARIANT=generic
TARGET_2ND_ARCH=arm
TARGET_2ND_ARCH_VARIANT=armv8-a
TARGET_2ND_CPU_VARIANT=generic
HOST_ARCH=x86_64
HOST_2ND_ARCH=x86
HOST_OS=linux
HOST_OS_EXTRA=Linux-5.4.0-42-generic-x86_64-Ubuntu-18.04.5-LTS
HOST_CROSS_ARCH=x86
HOST_CROSS_2ND_ARCH=x86_64
HOST_BUILD_TYPE=release
BUILD_ID=RP1A.201105.002
OUT_DIR=out
PRODUCT_SOONG_NAMESPACES=device/google/crosshatch hardware/google/av hardware/google/camera hardware/google/interfaces hardware/google/pixel hardware/qcom/sdm845 vendor/google/camera vendor/qcom/sdm845 vendor/google/interfaces vendor/google/crosshatch
============================================
[ 70% 307/433] including hardware/qcom/Android.mk ...
hardware/qcom/sdm845/display/include/Android.mk:21: warning: BUILD_COPY_HEADERS has been deprecated. See https://android.googlesource.com/platform/build/+/master/Changes.md#copy_headers.
hardware/qcom/sdm845/display/sdm/libs/utils/Android.mk:34: warning: BUILD_COPY_HEADERS has been deprecated. See https://android.googlesource.com/platform/build/+/master/Changes.md#copy_headers.
hardware/qcom/sdm845/display/sdm/libs/core/Android.mk:73: warning: BUILD_COPY_HEADERS has been deprecated. See https://android.googlesource.com/platform/build/+/master/Changes.md#copy_headers.
hardware/qcom/sdm845/display/sdm/libs/core/Android.mk:86: warning: BUILD_COPY_HEADERS has been deprecated. See https://android.googlesource.com/platform/build/+/master/Changes.md#copy_headers.
hardware/qcom/sdm845/display/libcopybit/Android.mk:23: warning: BUILD_COPY_HEADERS has been deprecated. See https://android.googlesource.com/platform/build/+/master/Changes.md#copy_headers.
hardware/qcom/sdm845/display/gpu_tonemapper/Android.mk:8: warning: BUILD_COPY_HEADERS has been deprecated. See https://android.googlesource.com/platform/build/+/master/Changes.md#copy_headers.
hardware/qcom/sdm845/display/libdrmutils/Android.mk: warning: libdrmutils: LOCAL_COPY_HEADERS is deprecated. See https://android.googlesource.com/platform/build/+/master/Changes.md#copy_headers
hardware/qcom/sdm845/display/gralloc/../common.mk: warning: gralloc.sdm845: LOCAL_COPY_HEADERS is deprecated. See https://android.googlesource.com/platform/build/+/master/Changes.md#copy_headers
hardware/qcom/sdm845/media/libstagefrighthw/Android.mk: warning: libstagefrighthw: LOCAL_COPY_HEADERS is deprecated. See https://android.googlesource.com/platform/build/+/master/Changes.md#copy_headers
hardware/qcom/sdm845/media/mm-core/Android.mk: warning: libOmxCore: LOCAL_COPY_HEADERS is deprecated. See https://android.googlesource.com/platform/build/+/master/Changes.md#copy_headers
hardware/qcom/sdm845/media/libplatformconfig/Android.mk:18: warning: BUILD_COPY_HEADERS has been deprecated. See https://android.googlesource.com/platform/build/+/master/Changes.md#copy_headers.
[ 99% 432/433] finishing build rules ...
FAILED:
build/make/core/main.mk:1208: warning:  build/make/target/product/mainline_system.mk produces files outside its artifact path requirement. Allowed paths are root/*, system/*
Offending entries:
system_ext/lib/vendor.lineage.power@1.0.so
system_ext/lib64/vendor.lineage.power@1.0.so
build/make/core/main.mk:1208: error: Build failed.
20:14:40 ckati failed with: exit status 1

#### failed to build some targets (02:15 (mm:ss)) ####


real	2m16.485s
user	9m58.396s
sys	0m54.527s