this derivation will be built:
  /nix/store/xz994lfxrd2gf7d99yh8ah3dxj59gxx3-treefmt-check.drv
treefmt-check> treefmt v2.5.0traversed 226 files
treefmt-check> emitted 177 files for processing
treefmt-check> formatted 177 files (0 changed) in 1.171s