this derivation will be built:
  /nix/store/hdbck89liq8z3srd52hd3mi1xyz6qs73-treefmt-check.drv
building '/nix/store/hdbck89liq8z3srd52hd3mi1xyz6qs73-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 1955 files
treefmt-check> emitted 530 files for processing
treefmt-check> formatted 530 files (0 changed) in 3.531s

upload niks3: ok