this derivation will be built:
  /nix/store/b4zjsknmj4da2xd0r496hrw1mj281wyn-treefmt-check.drv
building '/nix/store/b4zjsknmj4da2xd0r496hrw1mj281wyn-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 2195 files
treefmt-check> emitted 515 files for processing
treefmt-check> formatted 515 files (0 changed) in 17.517s

upload niks3: ok