these 3 derivations will be built:
  /nix/store/ipw18bhkqnvi4a0q4c649vhi8dn56g73-treefmt.toml.drv
  /nix/store/c4kyr6p6p2j71bsbq1i4qzlxilss6cyh-treefmt.drv
  /nix/store/40ksjw7zwippfdvxx7m4c9122px54vmy-treefmt-check.drv
error: Cannot build '/nix/store/40ksjw7zwippfdvxx7m4c9122px54vmy-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/yq39li4z0sbi3hpc2m6bpqmwcx699ndv-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 163ms
       > Error: failed to finalise formatting: formatting failures detected
       For full logs, run:
         nix log /nix/store/40ksjw7zwippfdvxx7m4c9122px54vmy-treefmt-check.drv