this derivation will be built:
  /nix/store/rym6y3mh79wpzbmi9midbjnvhm20mcvm-treefmt-check.drv
building '/nix/store/rym6y3mh79wpzbmi9midbjnvhm20mcvm-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 1970 files
treefmt-check> emitted 535 files for processing
treefmt-check> formatted 535 files (0 changed) in 2.774s

upload niks3: ok