Skip crashing test on win64.

test/cctest/cctest.status

 # Copyright 2011 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 197 matching lines @@
   'test-cpu-profiler/JsNativeJsRuntimeJsSample': [SKIP],
   'test-cpu-profiler/JsNativeJsRuntimeJsSampleMultiple': [SKIP],
   'test-cpu-profiler/JsNativeJsSample': [SKIP],
   'test-cpu-profiler/JsNative1JsNative2JsSample': [SKIP],
 
   # BUG(v8:5193): Flaky.
   'test-cpu-profiler/FunctionApplySample': [SKIP],
 
   # BUG(5193): Flaky timeout.
   'test-sampler/LibSamplerCollectSample': [PASS, ['arch == x64', SKIP]],
+
+  # BUG(5920): Flaky crash.
+  'test-serialize/PartialSerializerContext': [PASS, ['arch == x64 and mode == debug', SKIP]],
 }],  # 'system == windows'
 
 ##############################################################################
 ['arch == arm', {
 
   'test-cpu-profiler/CollectDeoptEvents': [PASS, FAIL],
 
   # BUG(355): Test crashes on ARM.
   'test-log/ProfLazyMode': [SKIP],
 
@@ skipping 152 matching lines @@
   'test-field-type-tracking/*': [SKIP],
   'test-parsing/*': [SKIP],
   'test-page-promotion/*': [SKIP],
   'test-decls/*': [SKIP],
   'test-log/*': [SKIP],
   'test-gap-resolver/*': [SKIP],
   'test-dtoa/*': [SKIP],
 }],  # variant == wasm_traps
 
 ]