Bots will fall off indefinitely from this error:

error: LIBUSB_ERROR_NOT_FOUND [-5] .1.zip/bot_code/bot_main.py", line 138, in get_state state = bot_config.get_state(botobj) File "swarming_bot.1.zip/config/bot_config.py", line 877, in get_state devices = _android_get_devices(bot) File "swarming_bot.1.zip/config/bot_config.py", line 368, in _android_get_devices return platforms.android.get_devices(bot, endpoints=endpoints) File "swarming_bot.1.zip/api/platforms/android.py", line 114, in get_devices as_root=True) File "swarming_bot.1.zip/adb/contrib/high.py", line 306, in GetLocalDevices as_root=as_root) File "swarming_bot.1.zip/adb/contrib/high.py", line 271, in _ConnectFromHandles devices = parallel.pmap(fn, handles) File "swarming_bot.1.zip/adb/contrib/parallel.py", line 50, in pmap return _pmap(_POOL, _QUEUE_IN, _QUEUE_OUT, fn, items) File "swarming_bot.1.zip/adb/contrib/parallel.py", line 91, in _run result = fn(item) File "swarming_bot.1.zip/adb/contrib/high.py", line 265, in fn device = HighDevice.Connect(handle, **kwargs) File "swarming_bot.1.zip/adb/contrib/high.py", line 377, in Connect return cls._Connect(adb_commands_safe.AdbCommandsSafe.Connect, **kwargs) File "swarming_bot.1.zip/adb/contrib/high.py", line 986, in _Connect device = constructor(**kwargs) File "swarming_bot.1.zip/adb/contrib/adb_commands_safe.py", line 167, in Connect obj._OpenHandle() File "swarming_bot.1.zip/adb/contrib/adb_commands_safe.py", line 750, in _OpenHandle self._handle.Open() File "swarming_bot.1.zip/adb/common.py", line 186, in Open self._handle.claimInterface(self._interface_number) File "/b/swarm_slave/swarming_bot.1.zip/python_libusb1/usb1.py", line 1133, in claimInterface mayRaiseUSBError(result) File "/b/swarm_slave/swarming_bot.1.zip/python_libusb1/usb1.py", line 106, in mayRaiseUSBError raiseUSBError(value) File "/b/swarm_slave/swarming_bot.1.zip/python_libusb1/usb1.py", line 102, in raiseUSBError raise STATUS_TO_EXCEPTION_DICT.get(value, USBError)(value) USBErrorNotFound: LIBUSB_ERROR_NOT_FOUND [-5] 
quarantined: True