this derivation will be built:
  /nix/store/y1rip4i33kckf1wyb9p4n1805nhdd63d-treefmt-check.drv
building '/nix/store/y1rip4i33kckf1wyb9p4n1805nhdd63d-treefmt-check.drv'
treefmt-check> traversed 520 files
treefmt-check> emitted 356 files for processing
treefmt-check> formatted 356 files (0 changed) in 3.015s

upload niks3: ok