these 3 derivations will be built:
  /nix/store/1xas344gcm8sspnl5md397wys4facx77-treefmt.toml.drv
  /nix/store/bjz70h4k08kij0k21i50p1y09a7n7fzv-treefmt.drv
  /nix/store/kmmbf5shhan3dkcmys3w09831rdkffdc-treefmt-check.drv
error: Cannot build '/nix/store/kmmbf5shhan3dkcmys3w09831rdkffdc-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/262dmksplg1m0pb7iaszj9j2vsj5n2nk-treefmt-check
       Last 25 log lines:
       >
       > CPY001 Missing copyright notice at top of file
       > --> src/update_flake_inputs/flake_service.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> src/update_flake_inputs/gitea_service.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> tests/__init__.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> tests/test_flake_service.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> tests/test_gitea_service.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> tests/test_process_flake_updates.py:1:1
       >
       > Found 10 errors.
       >
       > traversed 34 files
       > emitted 20 files for processing
       > formatted 10 files (0 changed) in 125ms
       > Error: failed to finalise formatting: formatting failures detected
       For full logs, run:
         nix log /nix/store/kmmbf5shhan3dkcmys3w09831rdkffdc-treefmt-check.drv