this derivation will be built:
  /nix/store/hjzll2zac5js9slddjsyyr6d2k4zgaxy-treefmt-check.drv
building '/nix/store/hjzll2zac5js9slddjsyyr6d2k4zgaxy-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 1774 files
treefmt-check> emitted 499 files for processing
treefmt-check> formatted 499 files (0 changed) in 7.781s

upload niks3: ok