this derivation will be built:
  /nix/store/qbl5x10wgai9iy51wjkp676hj54f1y3x-treefmt-check.drv
building '/nix/store/qbl5x10wgai9iy51wjkp676hj54f1y3x-treefmt-check.drv'
treefmt-check> traversed 389 files
treefmt-check> emitted 188 files for processing
treefmt-check> formatted 188 files (0 changed) in 1.104s

post-build step Upload to niks3: ok
time=2026-09-18T09:12:30.650Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-18T09:12:31.106Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-18T09:12:31.259Z level=INFO msg="Upload complete. (637ms)"