Broken paladin:

https://cros-goldeneye.corp.google.com/chromeos/healthmonitoring/buildDetails?buildbucketId=8929889328361700480

relevant log:

https://storage.cloud.google.com/chromeos-autotest-results/257094346-chromeos-test/chromeos4-row5-rack12-host3/graphics_Idle/debug/graphics_Idle.DEBUG

Error message:

Traceback (most recent call last):
  File "/usr/local/autotest/common_lib/test.py", line 600, in _exec
    _call_test_function(self.execute, *p_args, **p_dargs)
  File "/usr/local/autotest/common_lib/test.py", line 800, in _call_test_function
    return func(*args, **dargs)
  File "/usr/local/autotest/common_lib/test.py", line 464, in execute
    postprocess_profiled_run, args, dargs)
  File "/usr/local/autotest/common_lib/test.py", line 371, in _call_run_once
    self.run_once(*args, **dargs)
  File "/usr/local/autotest/tests/graphics_Idle/graphics_Idle.py", line 69, in run_once
    raise error.TestFail('Failed: %s' % errors)
TestFail: Failed: PSR_PATHS not found.

This CL looks like the probable cause:

https://chromium-review.googlesource.com/c/chromiumos/third_party/autotest/+/1295549