this derivation will be built:
  /nix/store/g0x7k4sm1mqlbvs1ggnqm0y4ll6igm66-treefmt-check.drv
building '/nix/store/g0x7k4sm1mqlbvs1ggnqm0y4ll6igm66-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 14 files
treefmt-check> emitted 9 files for processing
treefmt-check> formatted 9 files (0 changed) in 110ms