[Moto G General] checkmateyou:
I did a "make clean," then resync, and rebuild and the same error came out. Perhaps I didn't copy the entire portion of the error log.

Copying: /Volumes/android/out/target/product/falcon/obj/GYP/shared_intermediates/resources/inspector/timelinePanel.css
Copying: /Volumes/android/out/target/product/falcon/obj/GYP/shared_intermediates/resources/inspector/canvasProfiler.css
Copying: /Volumes/android/out/target/product/falcon/obj/GYP/shared_intermediates/resources/inspector/layersPanel.css
target thumb C++: components_autofill_content_renderer_gyp <= external/chromium_org/components/autofill/content/renderer/autofill_agent.cc
target thumb C++: components_autofill_content_renderer_gyp <= external/chromium_org/components/autofill/content/renderer/form_autofill_util.cc
target thumb C++: components_autofill_content_renderer_gyp <= external/chromium_org/components/autofill/content/renderer/form_cache.cc
target thumb C++: components_autofill_content_renderer_gyp <= external/chromium_org/components/autofill/content/renderer/page_click_tracker.cc
target thumb C++: components_autofill_content_renderer_gyp <= external/chromium_org/components/autofill/content/renderer/password_autofill_agent.cc
target thumb C++: components_autofill_content_renderer_gyp <= external/chromium_org/components/autofill/content/renderer/password_form_conversion_utils.cc
SYSMAP .tmp_System.map
target thumb C++: components_autofill_content_renderer_gyp <= external/chromium_org/components/autofill/content/renderer/password_generation_agent.cc
OBJCOPY arch/arm/boot/Image
Kernel: arch/arm/boot/Image is ready
AS arch/arm/boot/compressed/head.o
XZKERN arch/arm/boot/compressed/piggy.xzkern
/Volumes/android/kernel/motorola/msm8226/scripts/xz_wrap.sh: line 23: exec: xz: not found
CC arch/arm/boot/compressed/misc.o
CC arch/arm/boot/compressed/decompress.o
Copying: /Volumes/android/out/target/product/falcon/obj/GYP/shared_intermediates/widevine_cdm_version.h
target thumb C++: components_navigation_interception_gyp <= external/chromium_org/components/navigation_interception/intercept_navigation_resource_throttle.cc
CC arch/arm/boot/compressed/string.o
target thumb C++: components_navigation_interception_gyp <= external/chromium_org/components/navigation_interception/navigation_params.cc
SHIPPED arch/arm/boot/compressed/lib1funcs.S
target thumb C++: components_navigation_interception_gyp <= external/chromium_org/components/navigation_interception/component_jni_registrar.cc
SHIPPED arch/arm/boot/compressed/ashldi3.S
target thumb C++: components_navigation_interception_gyp <= external/chromium_org/components/navigation_interception/intercept_navigation_delegate.cc
AS arch/arm/boot/compressed/piggy.xzkern.o
AS arch/arm/boot/compressed/lib1funcs.o
/Volumes/android/kernel/motorola/msm8226/arch/arm/boot/compressed/piggy.xzkern.S: Assembler messages:
/Volumes/android/kernel/motorola/msm8226/arch/arm/boot/compressed/piggy.xzkern.S:4: Error: file not found: arch/arm/boot/compressed/piggy.xzkern
make[4]: *** [arch/arm/boot/compressed/piggy.xzkern.o] Error 1
make[4]: *** Waiting for unfinished jobs....
target thumb C++: components_navigation_interception_gyp <= external/chromium_org/components/navigation_interception/navigation_params_android.cc
make[3]: *** [arch/arm/boot/compressed/vmlinux] Error 2
make[2]: *** [zImage] Error 2
make[1]: *** [sub-make] Error 2
make: *** [TARGET_KERNEL_BINARIES] Error 2
make: *** Waiting for unfinished jobs....

I have no idea what a Toolchain is, so I assume I didn't apply it? Could you point out to me how to check it, please? I already perform a "make clean" and brunch again, so I am not sure what to do. And where is .ccache located? Would a "make clean" wipe that already, or do I have to manually delete it?