[2020-02-04 23:29:15] ERROR 2: ini_set(): Cannot change zlib.output_compression - headers already sent at [/core/data/drydock/workingcopy-88/repo/phabricator/src/aphront/response/AphrontResponse.php:424] arcanist(head=master, ref.master=21a1828ea06c), phabricator(head=fd46c597aec5cc44707dc99e153da749c5389907, ref.master=b38449ce8f4b), phutil(head=master, ref.master=cc2a3dbf5903) #0 ini_set(string, string) called at [/src/aphront/response/AphrontResponse.php:424] #1 AphrontResponse::willBeginWrite() called at [/src/aphront/sink/AphrontHTTPSink.php:107] #2 AphrontHTTPSink::writeResponse(AphrontJSONResponse) called at [/src/aphront/sink/__tests__/AphrontHTTPSinkTestCase.php:73] #3 AphrontHTTPSinkTestCase::testJSONContentSniff() #4 call_user_func_array(array, array) called at [/src/unit/engine/phutil/PhutilTestCase.php:492] #5 PhutilTestCase::run() called at [/src/unit/engine/PhutilUnitTestEngine.php:69] #6 PhutilUnitTestEngine::run() called at [/src/unit/engine/ArcanistConfigurationDrivenUnitTestEngine.php:148] #7 ArcanistConfigurationDrivenUnitTestEngine::run() called at [/src/workflow/ArcanistUnitWorkflow.php:170] #8 ArcanistUnitWorkflow::run() called at [/scripts/arcanist.php:394]