these 3 derivations will be built:
  /nix/store/v8p3a8xaqx1m746bxafbh9yq2pxxj81i-treefmt.toml.drv
  /nix/store/pm18sab9mw4wwfrvq4qml0gfxxhzgpr5-treefmt.drv
  /nix/store/vcn4hjm953w8387ilsccr0gwpzwbn51l-treefmt-check.drv
error: Cannot build '/nix/store/vcn4hjm953w8387ilsccr0gwpzwbn51l-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/c6pm5jb0ycgc289ji10xvs6m1h36rsyp-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 83ms
       > Error: failed to finalise formatting: formatting failures detected
       For full logs, run:
         nix log /nix/store/vcn4hjm953w8387ilsccr0gwpzwbn51l-treefmt-check.drv