this derivation will be built:
  /nix/store/j56cc9klcsjnk38qvk9754avkf9q9qll-treefmt-check.drv
building '/nix/store/j56cc9klcsjnk38qvk9754avkf9q9qll-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 2050 files
treefmt-check> emitted 553 files for processing
treefmt-check> formatted 553 files (0 changed) in 2.879s

upload niks3: ok