this derivation will be built:
  /nix/store/iym6l8cs3xwj9mrchz1shi1sknlli9hb-treefmt-check.drv
building '/nix/store/iym6l8cs3xwj9mrchz1shi1sknlli9hb-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 62 files
treefmt-check> emitted 39 files for processing
treefmt-check> formatted 39 files (0 changed) in 57ms