IndexError: too many indices for array: array is 1-dimensional, but 2 were indexed

[hans-ekbrand]

• Chess Tuning Tools version: 0.9.0
• Python version: 3.9.10
• Operating System: Debian unstable

What I Did

tune local -c config.json

ctt ran normally for 9 iterations, and crashed when starting the 10th iteration.

2022-07-05 09:00:57,991 INFO     Resuming from existing optimizer in model.pkl.
2022-07-05 09:00:57,991 INFO     Starting iteration 10
2022-07-05 09:00:58,832 INFO     Computing current optimum was not successful. This can happen in rare cases and running the tuner again usually works.
Traceback (most recent call last):
  File "/usr/local/bin/tune", line 8, in <module>
    sys.exit(cli())
  File "/home/hans/.local/lib/python3.9/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/home/hans/.local/lib/python3.9/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/home/hans/.local/lib/python3.9/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/hans/.local/lib/python3.9/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/hans/.local/lib/python3.9/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/home/hans/.local/lib/python3.9/site-packages/tune/cli.py", line 429, in local
    iterations=np.array(performance)[:, 0],
IndexError: too many indices for array: array is 1-dimensional, but 2 were indexed

A tar-archive with all the files in the working dir is available here: http://hansekbrand.se/temp/ctt-crash.tar