EXCEPTION (Exception): Unable to hold lock in external process! #0 C:\Users\BYK\AppData\Roaming\PortableApps\Arcanist\libphutil\src\filesystem\__tests__\PhutilFileLockTestCase.php(20): PhutilFileLockTestCase->holdLock(Object(TempFile)) #1 [internal function]: PhutilFileLockTestCase->testLockHolding() #2 C:\Users\BYK\AppData\Roaming\PortableApps\Arcanist\arcanist\src\unit\engine\phutil\PhutilTestCase.php(492): call_user_func_array(Array, Array) #3 C:\Users\BYK\AppData\Roaming\PortableApps\Arcanist\arcanist\src\unit\engine\PhutilUnitTestEngine.php(69): PhutilTestCase->run() #4 C:\Users\BYK\AppData\Roaming\PortableApps\Arcanist\arcanist\src\unit\engine\ArcanistConfigurationDrivenUnitTestEngine.php(147): PhutilUnitTestEngine->run() #5 C:\Users\BYK\AppData\Roaming\PortableApps\Arcanist\arcanist\src\workflow\ArcanistUnitWorkflow.php(167): ArcanistConfigurationDrivenUnitTestEngine->run() #6 C:\Users\BYK\AppData\Roaming\PortableApps\Arcanist\arcanist\src\workflow\ArcanistDiffWorkflow.php(1340): ArcanistUnitWorkflow->run() #7 C:\Users\BYK\AppData\Roaming\PortableApps\Arcanist\arcanist\src\workflow\ArcanistDiffWorkflow.php(1228): ArcanistDiffWorkflow->runUnit() #8 C:\Users\BYK\AppData\Roaming\PortableApps\Arcanist\arcanist\src\workflow\ArcanistDiffWorkflow.php(483): ArcanistDiffWorkflow->runLintUnit() #9 C:\Users\BYK\AppData\Roaming\PortableApps\Arcanist\arcanist\scripts\arcanist.php(392): ArcanistDiffWorkflow->run() #10 {main}