could not making apk package

I run bootstrap.sh x86 in x86_64 alpine. but kernel could not packaged. 

removed'/home/allan/aports/main/linux- Its/pkg/linux Virt-dev/usr/src/linx headers-6.18.2-0-virt/..checked-atomic-long.cmd
>>> linux-virt-dev*: Preparing subpackage linux-virt-dev.
>>> limux-virt-de*: Stripping binaries
>>> imux-virt-dev*: Running postcheck for linux-virt-dev
>> WARNING: linux-virt-dev Packages must not put anything under /lib, use /usr/lib instead
>>> linux-lts*: Running postcheck for linux-lts
>> WARNING: linux-lts: Packages must not put anything under /lib, use /usr/lib instead
>>> linx-lts： Preparing package linux-lts.
>>> limux-lts*: Stripping binaries
>> WARNING: linux-lts: No arch specific binaries found so arch should probably be set to "noarch"
>>> linux-lts*: Scanning shared objects
>>> linux-lts-dev*: Scanning shared objects
>>>linux-virt*: Scanning shared objects
>> limux-virt-dev*: Scanning shared objects
>>> linux-lts-dev*: Tracing dependencies.
ERROR: /lib/ld-musl-x86.64.so.1: Could mot find owner package
ERROR: /usr/lib/libcrypto. so.3: Could not find owner package
>>> ERROR: linux-lts: rootpkg failed
>>>ERROR: linux-lts-dev: create-apks failed
>>> linux-lts: Uninstalling dependencies..
(1/68) Purging.makedepends- linux-lts(20251229.155143)

and this line:
>> WARNING: linux-lts: No arch specific binaries found so arch shou ld probably be set to "noarch"
I see the build cmd is ARCH=x86 BOOTSTRAP=mkimage make -j=.....
why there is no arch and /lib/ld-musl-x86.64.so?