Build link:
https://uberchromegw.corp.google.com/i/chromeos/builders/gale-paladin/builds/3421

error log:
()
07/29 05:58:44.467 DEBUG|             utils:0212| Running 'hciconfig'
07/29 05:58:44.499 DEBUG|              test:0389| Test failed due to Bluetooth interface is up but not discoverable. Exception log follows the after_iteration_hooks.
07/29 05:58:44.503 DEBUG|              test:0392| starting after_iteration_hooks
07/29 05:58:44.506 WARNI|             utils:0174| Failure: Bluetooth interface is up but not discoverable
07/29 05:58:44.528 INFO |             utils:0179| ---- Test finished (jetstream_BluetoothBeaconing) ----
07/29 05:58:44.534 DEBUG|             utils:0212| Running 'if test -d /var/spool/crash/; then find /var/spool/crash/ -name "*.dmp"; fi'
07/29 05:58:44.570 DEBUG|             utils:0212| Running 'mkdir -p /usr/local/autotest/results/default/jetstream_BluetoothBeaconing/sysinfo/iteration.1/var/spool'
07/29 05:58:44.604 DEBUG|             utils:0212| Running 'rsync --no-perms --chmod=ugo+r -a --safe-links --exclude=/crash/**autoserv* --exclude=*.core /var/spool/crash /usr/local/autotest/results/default/jetstream_BluetoothBeaconing/sysinfo/iteration.1/var/spool'
07/29 05:58:44.652 DEBUG|             utils:0212| Running 'rm -rf /var/spool/crash/*'
07/29 05:58:44.699 DEBUG|             utils:0212| Running 'logger "autotest finished iteration /usr/local/autotest/results/default/jetstream_BluetoothBeaconing/sysinfo/iteration.1"'
07/29 05:58:44.733 DEBUG|              test:0395| after_iteration_hooks completed
07/29 05:58:44.736 WARNI|              test:0612| The test failed with the following exception
Traceback (most recent call last):
  File "/usr/local/autotest/common_lib/test.py", line 606, in _exec
    _call_test_function(self.execute, *p_args, **p_dargs)
  File "/usr/local/autotest/common_lib/test.py", line 806, in _call_test_function
    return func(*args, **dargs)
  File "/usr/local/autotest/common_lib/test.py", line 470, in execute
    dargs)
  File "/usr/local/autotest/common_lib/test.py", line 347, in _call_run_once_with_retry
    postprocess_profiled_run, args, dargs)
  File "/usr/local/autotest/common_lib/test.py", line 380, in _call_run_once
    self.run_once(*args, **dargs)
  File "/usr/local/autotest/tests/jetstream_BluetoothBeaconing/jetstream_BluetoothBeaconing.py", line 17, in run_once
    utils.VerifyBlutoothUpAndDiscoverable(self.router)
  File "/usr/local/autotest/common_lib/cros/jetstream/utils.py", line 333, in VerifyBlutoothUpAndDiscoverable
    raise error.TestFail('Bluetooth interface is up but not discoverable')
TestFail: Bluetooth interface is up but not discoverable
07/29 05:58:44.765 DEBUG|              test:0617| Running cleanup for test.
07/29 05:58:47.885 DEBUG|             utils:0212| Running 'cat /proc/meminfo'
07/29 05:58:47.920 INFO |       base_router:0413| Configuring AP: --factory_reset
07/29 05:58:47.925 DEBUG|             utils:0212| Running 'ap-configure --factory_reset'

it seems like a test flake to me