this derivation will be built:
  /nix/store/rp3ngh17ma5j9p21g9r117sh8asw86p9-treefmt-check.drv
building '/nix/store/rp3ngh17ma5j9p21g9r117sh8asw86p9-treefmt-check.drv'
treefmt-check> traversed 256 files
treefmt-check> emitted 136 files for processing
treefmt-check> formatted 136 files (0 changed) in 837ms

post-build step Upload to niks3: ok
time=2026-09-02T15:34:10.387Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-02T15:34:11.883Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-02T15:34:11.962Z level=INFO msg="Upload complete. (1.598s)"