this derivation will be built:
  /nix/store/8m6c87kr8liz99q3ckf75sa5dc7c9wg9-treefmt-check.drv
building '/nix/store/8m6c87kr8liz99q3ckf75sa5dc7c9wg9-treefmt-check.drv'
treefmt-check> traversed 539 files
treefmt-check> emitted 367 files for processing
treefmt-check> formatted 367 files (0 changed) in 5.064s

upload niks3: ok