[2018-07-30 17:56:56] ERROR 2: ini_set(): Cannot change zlib.output_compression - headers already sent at [/core/data/drydock/workingcopy-81/repo/phabricator/src/aphront/response/AphrontResponse.php:424] arcanist(head=master, ref.master=875d01836037), phabricator(head=81a7c9ac43f21267ada60d66b7451b966b8bcdc0, ref.master=26d0862f4f6f), phutil(head=master, ref.master=1613e68f4740) #0 ini_set(string, string) called at [/src/aphront/response/AphrontResponse.php:424] #1 AphrontResponse::willBeginWrite() called at [/src/aphront/sink/AphrontHTTPSink.php:99] #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]