this derivation will be built:
  /nix/store/1yknr9805c5j57lb85blm1cwirik7yj3-treefmt-check.drv
building '/nix/store/1yknr9805c5j57lb85blm1cwirik7yj3-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 32 files
treefmt-check> emitted 17 files for processing
treefmt-check> formatted 17 files (0 changed) in 85ms