Run bazel with --sandbox_debug when building desugared library

Change-Id: Id98985877edac027454253e6656c66352e3b9596
diff --git a/tools/archive_desugar_jdk_libs.py b/tools/archive_desugar_jdk_libs.py
index 91ad6b5..db1c753 100755
--- a/tools/archive_desugar_jdk_libs.py
+++ b/tools/archive_desugar_jdk_libs.py
@@ -104,6 +104,7 @@
     bazel = os.path.join(utils.BAZEL_TOOL, 'lib', 'bazel', 'bin', 'bazel')
     cmd = [
         bazel,
+        '--sandbox_debug',
         '--bazelrc=/dev/null',
         'build',
         'maven_release' + ('_jdk11' if variant == 'jdk11' else '')]