these 4 derivations will be built:
  /nix/store/55waw2yx3kh33x3c50yqpb9jlzihlaby-buildbot-4.3.0.drv
  /nix/store/ylmpwwfxv7jpswzjjk80d2cjarl9vxar-treefmt.toml.drv
  /nix/store/wn0a91j7rsi6gax0v2xkzdy68896jid1-treefmt.drv
  /nix/store/qdwv0816wsgglj6hvl6gzw354120b48l-treefmt-check.drv
these 3 paths will be fetched (197.6 KiB download, 961.4 KiB unpacked):
  /nix/store/8chpph34w36cq1gv8bxrxdiylyny5p2m-python3.14-buildbot_worker-4.3.0
  /nix/store/g1w42pp8cfc5dffkzh6pfqg2hiks2p82-python3.14-setuptools-trial-0.6.0
  /nix/store/75w19q83yrnca4sbpr8gy42jsdr8p28f-python3.14-txrequests-0.9.6
error: Cannot build '/nix/store/qdwv0816wsgglj6hvl6gzw354120b48l-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/nzyyxv8xzva2b30x6g3ggzgybqfkrrsi-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 10.755s
       > Error: failed to finalise formatting: formatting failures detected
       For full logs, run:
         nix log /nix/store/qdwv0816wsgglj6hvl6gzw354120b48l-treefmt-check.drv