/mach marionette test --binary testing/marionette/harness/marionette_harness/tests/unit/test_visibility.py
 0:00.00 INFO Using workspace for temporary data: "/home/hyperion/firefox"
Error running mach:

    ['marionette', 'test', '--binary', 'testing/marionette/harness/marionette_harness/tests/unit/test_visibility.py']

The error occurred in code that was called by the mach command. This is either
a bug in the called code itself or in the way that mach is calling it.

You should consider filing a bug for this issue.

If filing a bug, please include the full output of mach, including this error
message.

The details of the failure are as follows:

LocalAppNotFoundError: Application not found at: /home/hyperion/firefox/testing/marionette/harness/marionette_harness/tests/unit

  File "/home/hyperion/firefox/testing/marionette/mach_commands.py", line 116, in marionette_test
    return run_marionette(tests, topsrcdir=self.topsrcdir, **kwargs)
  File "/home/hyperion/firefox/testing/marionette/mach_commands.py", line 60, in run_marionette
    failed = MarionetteHarness(MarionetteTestRunner, args=vars(args)).run()
  File "/home/hyperion/firefox/testing/marionette/harness/marionette_harness/runtests.py", line 74, in run
    runner.run_tests(tests)
  File "/home/hyperion/firefox/testing/marionette/harness/marionette_harness/runner/base.py", line 857, in run_tests
    self.marionette = self.driverclass(**self._build_kwargs())
  File "/home/hyperion/firefox/testing/marionette/client/marionette_driver/marionette.py", line 633, in __init__
    app, host=self.host, port=self.port, bin=self.bin, **instance_args)
  File "/home/hyperion/firefox/testing/marionette/client/marionette_driver/geckoinstance.py", line 294, in create
    app_id = mozversion.get_version(binary=kwargs["bin"])["application_id"]
  File "/home/hyperion/firefox/testing/mozbase/mozversion/mozversion/mozversion.py", line 124, in get_version
    version = LocalVersion(binary)
  File "/home/hyperion/firefox/testing/mozbase/mozversion/mozversion/mozversion.py", line 101, in __init__
    raise errors.LocalAppNotFoundError(path)