these 3 derivations will be built:
  /nix/store/y3573h0v5w1p6cpaiji8dbxws943i7d3-treefmt.toml.drv
  /nix/store/q2l1k2q5ygn6gpb679n44sac9i24pznl-treefmt.drv
  /nix/store/gynnzaw7r5n6kca903jicwngygm6a2km-treefmt-check.drv
error: Cannot build '/nix/store/gynnzaw7r5n6kca903jicwngygm6a2km-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/dbhqlwv96pmckjiprcqpr50b37j2k31k-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 179ms
       > Error: failed to finalise formatting: formatting failures detected
       For full logs, run:
         nix log /nix/store/gynnzaw7r5n6kca903jicwngygm6a2km-treefmt-check.drv