these 3 derivations will be built:
  /nix/store/6cji30s23c58sz9vrkqzqk5vwr7z3610-treefmt.toml.drv
  /nix/store/drjv85nj6nwd4zh870f287pvzpq9w610-treefmt.drv
  /nix/store/fl4z5pdw2z4d3870qsjlkwqc525jpr77-treefmt-check.drv
error: build of '/nix/store/fl4z5pdw2z4d3870qsjlkwqc525jpr77-treefmt-check.drv' on 'ssh-ng://customer@mac02' failed: Cannot build '/nix/store/fl4z5pdw2z4d3870qsjlkwqc525jpr77-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/gb2n4xx6yb7801ghpm1m2c2zv1ifss6x-treefmt-check
       Last 25 log lines:
       >
       > CPY001 Missing copyright notice at top of file
       > --> tests/test_benchmark.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> tests/test_cli.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> tests/test_command.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> tests/test_git_revision.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> tests/test_parser.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> tests/test_specs.py:1:1
       >
       > Found 17 errors.
       >
       > traversed 31 files
       > emitted 22 files for processing
       > formatted 5 files (0 changed) in 537ms
       > Error: failed to finalise formatting: formatting failures detected
       For full logs, run:
         nix log /nix/store/fl4z5pdw2z4d3870qsjlkwqc525jpr77-treefmt-check.drv
error: Cannot build '/nix/store/fl4z5pdw2z4d3870qsjlkwqc525jpr77-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/gb2n4xx6yb7801ghpm1m2c2zv1ifss6x-treefmt-check