this derivation will be built:
  /nix/store/zx7a9r7mwqd60a82a5w34gn19yxy1w6k-treefmt-check.drv
building '/nix/store/zx7a9r7mwqd60a82a5w34gn19yxy1w6k-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 1968 files
treefmt-check> emitted 531 files for processing
treefmt-check> formatted 531 files (0 changed) in 3.352s

upload niks3: ok