these 3 derivations will be built:
  /nix/store/j60lf9i2fn2xn21wwgd22wlb6v2wascg-treefmt.toml.drv
  /nix/store/h4s3af9vhc77zs1a7rbsw0b5rxr2bc4l-treefmt.drv
  /nix/store/l9id8mxhacjrdysvm61s1nzaa2gyj9h0-treefmt-check.drv
error: build of '/nix/store/l9id8mxhacjrdysvm61s1nzaa2gyj9h0-treefmt-check.drv' on 'ssh-ng://customer@mac02' failed: Cannot build '/nix/store/l9id8mxhacjrdysvm61s1nzaa2gyj9h0-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/hxlb3f655ky6wm6pi7brk6ic5cilm1ja-treefmt-check
       Last 25 log lines:
       >
       > CPY001 Missing copyright notice at top of file
       > --> tests/test_escape_attr.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> tests/test_github_actions.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> tests/test_nixpkgs.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> tests/test_pr.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> tests/test_rev.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> tests/test_wip.py:1:1
       >
       > Found 34 errors (1 fixed, 33 remaining).
       >
       > traversed 62 files
       > emitted 46 files for processing
       > formatted 13 files (1 changed) in 232ms
       > Error: failed to finalise formatting: formatting failures detected
       For full logs, run:
         nix log /nix/store/l9id8mxhacjrdysvm61s1nzaa2gyj9h0-treefmt-check.drv
error: Cannot build '/nix/store/l9id8mxhacjrdysvm61s1nzaa2gyj9h0-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/hxlb3f655ky6wm6pi7brk6ic5cilm1ja-treefmt-check