this derivation will be built:
  /nix/store/v12iv43j0k2mhnsd8x34bm3b2bwyvf8y-treefmt-check.drv
building '/nix/store/v12iv43j0k2mhnsd8x34bm3b2bwyvf8y-treefmt-check.drv'
treefmt-check> traversed 549 files
treefmt-check> emitted 371 files for processing
treefmt-check> formatted 371 files (0 changed) in 13.608s

upload niks3: ok