this derivation will be built:
  /nix/store/mq2mah13pknbq3an1l1nvph7b104jj9k-treefmt-check.drv
building '/nix/store/mq2mah13pknbq3an1l1nvph7b104jj9k-treefmt-check.drv'
treefmt-check> traversed 522 files
treefmt-check> emitted 281 files for processing
treefmt-check> formatted 281 files (0 changed) in 1.361s

post-build step Upload to niks3: ok
time=2026-09-21T13:02:12.139Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-21T13:02:12.578Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-21T13:02:12.652Z level=INFO msg="Upload complete. (534ms)"