Job 545

InvalidSubmission:
Traceback (most recent call last):
  File "/workspace/src/duckietown-challenges/src/duckietown_challenges/cie_concrete.py", line 475, in wrap_evaluator
    raise InvalidSubmission(out[SPECIAL_INVALID_SUBMISSION])
InvalidSubmission: Invalid solution:
Traceback (most recent call last):
  File "/notebooks/src/duckietown-challenges/src/duckietown_challenges/cie_concrete.py", line 575, in wrap_solution
    solution.run(cis)
  File "solution.py", line 74, in run
    raise InvalidSubmission(str(e))
InvalidSubmission: no display name and no $DISPLAY environment variable