this derivation will be built:
  /nix/store/x6xx5f59787biljfdn0aqar9pd9qd74s-treefmt-check.drv
building '/nix/store/x6xx5f59787biljfdn0aqar9pd9qd74s-treefmt-check.drv'
treefmt-check> traversed 146 files
treefmt-check> emitted 75 files for processing
treefmt-check> formatted 75 files (0 changed) in 523ms