Stack trace for this step: File "/b/s/w/ir/kitchen-checkout/recipe_engine/recipe_engine/main.py", line 166, in <module> _main() File "/b/s/w/ir/kitchen-checkout/recipe_engine/recipe_engine/main.py", line 143, in _main ret = parse_and_run() File "/b/s/w/ir/kitchen-checkout/recipe_engine/recipe_engine/internal/commands/__init__.py", line 310, in parse_and_run return args.func(args) File "/b/s/w/ir/kitchen-checkout/recipe_engine/recipe_engine/internal/commands/luciexe/__init__.py", line 55, in _launch return main(args) File "/b/s/w/ir/kitchen-checkout/recipe_engine/recipe_engine/internal/commands/luciexe/cmd.py", line 85, in main return _main_impl(args) File "/b/s/w/ir/kitchen-checkout/recipe_engine/recipe_engine/internal/commands/luciexe/cmd.py", line 106, in _main_impl raw_result, _ = RecipeEngine.run_steps( File "/b/s/w/ir/kitchen-checkout/recipe_engine/recipe_engine/internal/engine.py", line 592, in run_steps raw_result = recipe_obj.run_steps(api, engine) File "/b/s/w/ir/kitchen-checkout/recipe_engine/recipe_engine/internal/recipe_deps.py", line 1018, in run_steps recipe_result = invoke_with_properties( File "/b/s/w/ir/kitchen-checkout/recipe_engine/recipe_engine/internal/property_invoker.py", line 88, in invoke_with_properties return _invoke_with_properties(callable_obj, all_props, environ, prop_defs, File "/b/s/w/ir/kitchen-checkout/recipe_engine/recipe_engine/internal/property_invoker.py", line 52, in _invoke_with_properties return callable_obj(*props, **additional_args) File "/b/s/w/ir/kitchen-checkout/build/recipes/recipes/binary_size_fuchsia_trybot.py", line 14, in RunSteps return api.binary_size.fuchsia_binary_size() File "/b/s/w/ir/kitchen-checkout/build/recipes/recipe_modules/binary_size/api.py", line 134, in fuchsia_binary_size return self.compare_size( File "/b/s/w/ir/kitchen-checkout/build/recipes/recipe_modules/binary_size/api.py", line 362, in compare_size binary_size_result, gerrit_plugin_details = self._check_for_undocumented_increase( File "/b/s/w/ir/kitchen-checkout/build/recipes/recipe_modules/binary_size/api.py", line 599, in _check_for_undocumented_increase result_json = self.m.file.read_json( File "/b/s/w/ir/kitchen-checkout/recipe_engine/recipe_modules/file/api.py", line 481, in read_json text = self.read_text( File "/b/s/w/ir/kitchen-checkout/recipe_engine/recipe_modules/file/api.py", line 427, in read_text result = self._run( File "/b/s/w/ir/kitchen-checkout/recipe_engine/recipe_modules/file/api.py", line 141, in _run result = self.m.step( File "/b/s/w/ir/kitchen-checkout/recipe_engine/recipe_modules/step/api.py", line 716, in __call__ return self._run_or_raise_step( File "/b/s/w/ir/kitchen-checkout/recipe_engine/recipe_modules/step/api.py", line 470, in _run_or_raise_step ret = self.step_client.run_step(step_config) File "/b/s/w/ir/kitchen-checkout/recipe_engine/recipe_engine/recipe_api.py", line 257, in run_step return self._engine.run_step(step) File "/b/s/w/ir/kitchen-checkout/recipe_engine/recipe_engine/internal/engine.py", line 440, in run_step caught = _run_step( File "/b/s/w/ir/kitchen-checkout/recipe_engine/recipe_engine/internal/engine.py", line 977, in _run_step traceback.print_stack(file=buffer) Prepopulating placeholder data Rendering input placeholders rendering placeholders <RECIPE_MODULES.recipe_engine.json.api.JsonOutputPlaceholder object at 0x77fcf6dbe450> <RECIPE_MODULES.recipe_engine.raw_io.api.OutputTextPlaceholder object at 0x77fcf6a73950> rendering std handles merging envs writing LUCI_CONTEXT file done: '/b/s/w/itkbxicl7v/luci_context.82921486' checking cwd: '/b/s/w/ir/cache/builder/src' resolving cmd0 'vpython3' in PATH: ['/b/s/w/ir/bbagent_utility_packages', '/b/s/w/ir/bbagent_utility_packages/bin', '/b/s/w/ir/cipd_bin_packages', '/b/s/w/ir/cipd_bin_packages/bin', '/b/s/w/ir/cipd_bin_packages/cpython3', '/b/s/w/ir/cipd_bin_packages/cpython3/bin', '/b/s/w/ir/cache/cipd_client', '/b/s/w/ir/cache/cipd_client/bin', '/b/s/cipd_cache/bin', '/usr/local/sbin', '/usr/local/bin', '/usr/sbin', '/usr/bin', '/sbin', '/bin', '/snap/bin'] with cwd: /b/s/w/ir/cache/builder/src looking in PATH checking '/b/s/w/ir/bbagent_utility_packages/vpython3' checking '/b/s/w/ir/bbagent_utility_packages/bin/vpython3' checking '/b/s/w/ir/cipd_bin_packages/vpython3' resolved cmd0: '/b/s/w/ir/cipd_bin_packages/vpython3' Executing step fhandles {'stdin': -3, 'stdout': <socket.socket fd=9, family=1, type=1, proto=0, raddr=/b/s/w/ir/x/ld/sock.1287291786>, 'stderr': <socket.socket fd=9, family=1, type=1, proto=0, raddr=/b/s/w/ir/x/ld/sock.1287291786>} launched pid:147362 gid:147362 Waiting for process. Finished waiting, retcode 0 BUG/FEATURE: Allowing process group to continue. reaping IO workers... done Resolving output placeholders finding result of <RECIPE_MODULES.recipe_engine.json.api.JsonOutputPlaceholder object at 0x77fcf6dbe450> finding result of <RECIPE_MODULES.recipe_engine.raw_io.api.OutputTextPlaceholder object at 0x77fcf6a73950>