this derivation will be built:
  /nix/store/3iljv6s2z951rm3ianb2mm0r9cs91fhh-treefmt-check.drv
building '/nix/store/3iljv6s2z951rm3ianb2mm0r9cs91fhh-treefmt-check.drv'
treefmt-check> traversed 534 files
treefmt-check> emitted 363 files for processing
treefmt-check> formatted 363 files (0 changed) in 2.279s

upload niks3: ok