these 4 derivations will be built:
  /nix/store/ll9adbgra8bbmciibjllwm2z0l0b6b0z-buildbot-4.3.0.drv
  /nix/store/q3fp7r8jiyx38734y52qk1yii73qfm48-treefmt.toml.drv
  /nix/store/49aksxx755aspjsyvc72vrm83667ba9i-treefmt.drv
  /nix/store/983ydryydyk4qzc5r0i65zy1n91vw6w3-treefmt-check.drv
these 8 paths will be fetched (1.8 MiB download, 10.9 MiB unpacked):
  /nix/store/lfbrkk16qddgzcay9gdrv0c4kf2bjdhi-python3.14-autobahn-25.12.2
  /nix/store/xwx7fgnq38sbv240js76vvd1za4dxw84-python3.14-buildbot_pkg-4.3.0
  /nix/store/kj1362jm65wn0zlvsj87kphizri5pacf-python3.14-buildbot_worker-4.3.0
  /nix/store/sc7vkxzyyaycr2srlcq558x961dikyhl-python3.14-buildbot_www-4.3.0
  /nix/store/si54jzg4c8226b45kpimdg5id3yx1rj6-python3.14-pypugjs-7.0.0
  /nix/store/hr0frhbinj7zppfqh77dj4s39vgmkybg-python3.14-setuptools-trial-0.6.0
  /nix/store/m6i25dzpbjkzvwm0k1qsk4b0brc4zl85-python3.14-txrequests-0.9.6
  /nix/store/rxybqz5yiam6mrbf0vwnjbgzmkshclaz-python3.14-unidiff-1.0.0
error: Cannot build '/nix/store/983ydryydyk4qzc5r0i65zy1n91vw6w3-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/hrdilmzf2gwn007gwdfw0vfavzzhgaa6-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 11.43s
       > Error: failed to finalise formatting: formatting failures detected
       For full logs, run:
         nix log /nix/store/983ydryydyk4qzc5r0i65zy1n91vw6w3-treefmt-check.drv