this derivation will be built:
  /nix/store/h3pnsp9yj5vzxvvxg1rswnpq97wqhzf8-treefmt-check.drv
building '/nix/store/h3pnsp9yj5vzxvvxg1rswnpq97wqhzf8-treefmt-check.drv'
treefmt-check> traversed 531 files
treefmt-check> emitted 288 files for processing
treefmt-check> formatted 288 files (0 changed) in 1.4s

post-build step Upload to niks3: ok
time=2026-09-21T20:52:25.609Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-21T20:52:26.352Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-21T20:52:26.855Z level=INFO msg="Upload complete. (1.267s)"