this derivation will be built:
  /nix/store/4k1gi3afr62qnmm278ax6ak87jdvc6zq-treefmt-check.drv
building '/nix/store/4k1gi3afr62qnmm278ax6ak87jdvc6zq-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 14 files
treefmt-check> emitted 6 files for processing
treefmt-check> formatted 6 files (0 changed) in 781ms