this derivation will be built:
  /nix/store/8pifi5kh0ix5974wr3jxa4sj8yslf1i2-treefmt-check.drv
building '/nix/store/8pifi5kh0ix5974wr3jxa4sj8yslf1i2-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 1653 files
treefmt-check> emitted 425 files for processing
treefmt-check> formatted 425 files (0 changed) in 6.555s

upload niks3: ok