this derivation will be built:
  /nix/store/aivi9qd3svh55dq3rz86ghb9lm3px6wh-treefmt-check.drv
building '/nix/store/aivi9qd3svh55dq3rz86ghb9lm3px6wh-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 67 files
treefmt-check> emitted 44 files for processing
treefmt-check> formatted 44 files (0 changed) in 71ms