this derivation will be built:
  /nix/store/llias7jmzgxrrrjqkqzy72h0difyhzs1-treefmt-check.drv
error: Cannot build '/nix/store/llias7jmzgxrrrjqkqzy72h0difyhzs1-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/8kakda1k6iz59s410nj7ifvb2y43q1kw-treefmt-check
       Last 25 log lines:
       > CPY001 Missing copyright notice at top of file
       > --> buildbot_nix/buildbot_nix/scheduled.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> buildbot_nix/buildbot_nix/tests/__init__.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> buildbot_nix/buildbot_nix/tests/test_nix_eval_job.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> buildbot_nix/buildbot_nix/tests/test_pydantic_models.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> buildbot_nix/buildbot_nix/util.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> buildbot_nix/buildbot_nix/worker.py:1:1
       >
       > Found 60 errors (10 fixed, 50 remaining).
       > No fixes available (1 hidden fix can be enabled with the `--unsafe-fixes` option).
       >
       > traversed 98 files
       > emitted 90 files for processing
       > formatted 42 files (6 changed) in 15.656s
       > Error: failed to finalise formatting: formatting failures detected
       For full logs, run:
         nix log /nix/store/llias7jmzgxrrrjqkqzy72h0difyhzs1-treefmt-check.drv