time outputs to stderr

PKGBUILD

@@ -32,11 +32,11 @@ pkgver() {
 build() {
   cd $_kernel_src_dir && git clean -xdf
   cp ${_config_file} ${_kernel_src_dir}/.config
-  ${_make_cmd} | tee ${log_path}
-  ${_make_cmd} modules | tee -a ${log_path}
+  ${_make_cmd} 2>&1 | tee ${log_path}
+  ${_make_cmd} modules 2>&1 | tee -a ${log_path}
 
   if [ -n "${LOCAL_PI_VER}" ]; then
-    ${_make_cmd} dtbs | tee -a ${log_path}
+    ${_make_cmd} dtbs 2>&1 | tee -a ${log_path}
   fi
 }