MOT20 failed submission

[JoOkuma]

I'm trying to make a submission, but I'm getting this error. I couldn't find a way to debug it.

Given there was others issues (#2218 #2282 #2148) in the same challenge, could you help me with this?
My username is "jookuma" in codabench.

Thanks in advance.

[Didayolo]

We are investigating the problem. Sorry for the inconvenience.

Logs inside the worker when running the submission:

2026-04-20 13:19:02.201 | INFO     | celery.worker.strategy:task_message_handler:161 - Task compute_worker_run[e792fcaa-a6aa-4530-bb2f-fce8ce2ce7ed] received
2026-04-20 13:19:02.206 | INFO     | compute_worker:run_wrapper:254 - Received run arguments: 
 {"user_pk": 7,
 "submissions_api_url": "https://www.codabench.org/api",
 "secret": "7e2a7f8c-4bc2-44af-9c01-b3c4e2c4a7fe",
 "docker_image": "codalab/codalab-legacy:py37",
 "execution_time_limit": 1600,
 "id": 688538,
[...]
}
2026-04-20 13:19:02.207 | INFO     | compute_worker:_update_submission:563 - Updating submission @ https://www.codabench.org/api/submissions/688538/ with data = {'status': 'Running', 'status_details': 'scoring_hostname-worker4_test', 'secret': '7e2a7f8c-4bc2-44af-9c01-b3c4e2c4a7fe'}
2026-04-20 13:19:02.743 | INFO     | compute_worker:_update_submission:567 - Submission updated successfully!
2026-04-20 13:19:02.743 | INFO     | compute_worker:_prep_cache_dir:1189 - Checking if cache directory needs to be pruned...
2026-04-20 13:19:02.744 | INFO     | compute_worker:_prep_cache_dir:1194 - Cache directory does not need to be pruned!
[...]

2026-04-20 13:19:25.226 | INFO     | compute_worker:start:1253 - Running scoring program, and then ingestion program
2026-04-20 13:19:25.227 | INFO     | compute_worker:_run_program_directory:934 - Metadata path is /codabench/uPK-7_sID-688538__5uvhmfn8/program/metadata.yaml
2026-04-20 13:19:25.228 | INFO     | compute_worker:_run_program_directory:938 - Metadata contains:
 {'command': 'python3 runMOT.py'}
2026-04-20 13:19:25.229 | INFO     | compute_worker:_run_program_directory:1078 - Running container with command python3 runMOT.py
2026-04-20 13:19:26.085 | INFO     | compute_worker:_run_program_directory:1120 - Volume configuration of the container: 
{
│   '/codabench/uPK-7_sID-688538__5uvhmfn8/program': {
│   │   'bind': '/app/program',
│   │   'mode': 'z'
│   },
│   '/codabench/uPK-7_sID-688538__5uvhmfn8/output': {
│   │   'bind': '/app/output',
│   │   'mode': 'z'
│   },
│   '/codabench/data': {'bind': '/app/data', 'mode': 'ro'},
│   '/codabench/uPK-7_sID-688538__5uvhmfn8/shared': {'bind': '/app/shared'},
│   '/codabench/uPK-7_sID-688538__5uvhmfn8/input': {'bind': '/app/input'}
}
2026-04-20 13:19:26.088 | WARNING  | compute_worker:_run_program_directory:909 - /codabench/uPK-7_sID-688538__5uvhmfn8/ingestion_program not found, no program to execute
2026-04-20 13:19:26.089 | INFO     | compute_worker:watch_detailed_results:475 - 7.152557373046875e-07
2026-04-20 13:19:27.552 | INFO     | compute_worker:_run_container_engine_cmd:788 - 
Eval Config:
USE_PARALLEL         : True                          
NUM_PARALLEL_CORES   : 2                             
PLOT_CURVES          : False                         
BREAK_ON_ERROR       : False                         
RETURN_ON_ERROR      : True                          
LOG_ON_ERROR         : True                          
PRINT_RESULTS        : True                          
PRINT_ONLY_COMBINED  : False                         
PRINT_CONFIG         : True                          
TIME_PROGRESS        : True                          
DISPLAY_LESS_PROGRESS : True                          
OUTPUT_SUMMARY       : True                          
OUTPUT_EMPTY_CLASSES : True                          
2026-04-20 13:19:27.553 | INFO     | compute_worker:_run_container_engine_cmd:788 - 
OUTPUT_DETAILED      : True                          

MotChallenge2DBox Config:

2026-04-20 13:19:27.553 | INFO     | compute_worker:_run_container_engine_cmd:788 - TRACKERS_TO_EVAL     : ['res']                       
TRACKER_SUB_FOLDER   :                               
2026-04-20 13:19:27.554 | INFO     | compute_worker:_run_container_engine_cmd:788 - 
OUTPUT_SUB_FOLDER    : ../                           
OUTPUT_FOLDER        : /app/output/                  
BENCHMARK            : MOT20                         
SPLIT_TO_EVAL        : test                          
2026-04-20 13:19:27.555 | INFO     | compute_worker:_run_container_engine_cmd:788 - 
SKIP_SPLIT_FOL       : True                          
GT_FOLDER            : /app/input/ref                
TRACKERS_FOLDER      : /app/input                    
SEQMAP_FOLDER        : /app/input/ref                
SEQMAP_FILE          : /app/input/ref/test-sequences.txt
CLASSES_TO_EVAL      : ['pedestrian']                
INPUT_AS_ZIP         : False                         
2026-04-20 13:19:27.555 | INFO     | compute_worker:_run_container_engine_cmd:788 - 
PRINT_CONFIG         : True                          
DO_PREPROC           : True                          
TRACKER_DISPLAY_NAMES : None                          
SEQ_INFO             : None                          
GT_LOC_FORMAT        : {gt_folder}/{seq}/gt/gt.txt   

2026-04-20 13:19:27.556 | INFO     | compute_worker:_run_container_engine_cmd:788 - 
Evaluating 1 tracker(s) on 4 sequence(s) for 1 class(es) on MotChallenge2DBox dataset using the following metrics: HOTA, CLEAR, Identity, Count


Evaluating res



2026-04-20 13:46:05.228 | ERROR    | compute_worker:_run_container_engine_cmd:812 - There was an error while starting the container and getting the logs: 

Nothing more

[JoOkuma]

Thanks @Didayolo

From the logs, it seems it's the error on your side, right?
If that's the case, I'll just wait.

[Didayolo]

Thanks @Didayolo

From the logs, it seems it's the error on your side, right? If that's the case, I'll just wait.

This competition specifically is triggering a problem on the compute worker code. So yes, it is on our side, but there is something in the scoring program of MOT20 that raises a bug that we don't see anywhere else. I'll use your submission to investigate the bug.

Symptoms:

• The submission container does not get killed
• compute_worker:_run_container_engine_cmd:812 - There was an error while starting the container and getting the logs: