Job 61043

InvalidEvaluator:
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/procgraph/core/model.py", line 316, in update
    result = block.update()
  File "/usr/local/lib/python3.8/site-packages/procgraph_mplayer/mplayer.py", line 165, in update
    self.read_next_frame()
  File "/usr/local/lib/python3.8/site-packages/procgraph_mplayer/mplayer.py", line 207, in read_next_frame
    rgbs = numpy.fromfile(self.stream, dtype=dtype, count=1)
OSError: obtaining file position failed

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "main.py", line 19, in wrap
    stats = evaluate_robotarium_log(d_step, outd=outd)
  File "/project/evaluate_robotarium_log.py", line 216, in evaluate_robotarium_log
    make_video_join(out_together, out_robot, out_pair)
  File "/project/evaluate_robotarium_log.py", line 402, in make_video_join
    pg('pair_couple', params)
  File "/usr/local/lib/python3.8/site-packages/procgraph/scripts/pgmain.py", line 280, in pg
    raise e
  File "/usr/local/lib/python3.8/site-packages/procgraph/scripts/pgmain.py", line 277, in pg
    model.update()
  File "/usr/local/lib/python3.8/site-packages/procgraph/core/model.py", line 321, in update
    raise BadMethodCall("update", block, traceback.format_exc())
procgraph.core.exceptions.BadMethodCall: User-thrown exception while calling update() in block 'mplayer'.
- B:MPlayer:mplayer(in:/;out:video) 139752310364528
- M:pair_couple:cmdline(in:/;out:/) 139752310362320
> Traceback (most recent call last):
>   File "/usr/local/lib/python3.8/site-packages/procgraph/core/model.py", line 316, in update
>     result = block.update()
>   File "/usr/local/lib/python3.8/site-packages/procgraph_mplayer/mplayer.py", line 165, in update
>     self.read_next_frame()
>   File "/usr/local/lib/python3.8/site-packages/procgraph_mplayer/mplayer.py", line 207, in read_next_frame
>     rgbs = numpy.fromfile(self.stream, dtype=dtype, count=1)
> OSError: obtaining file position failed

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/duckietown_challenges/cie_concrete.py", line 681, in scoring_context
    yield cie
  File "main.py", line 34, in <module>
    wrap(_)
  File "main.py", line 24, in wrap
    raise dc.InvalidEvaluator() from e
duckietown_challenges.exceptions.InvalidEvaluator: