this derivation will be built:
  /nix/store/7583fm93nd0v2qxgbykc8c4cy3vq6xvr-treefmt-check.drv
building '/nix/store/7583fm93nd0v2qxgbykc8c4cy3vq6xvr-treefmt-check.drv'
treefmt-check> traversed 520 files
treefmt-check> emitted 279 files for processing
treefmt-check> formatted 279 files (0 changed) in 1.32s

post-build step Upload to niks3: ok
time=2026-09-21T10:16:33.351Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-21T10:16:33.914Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-21T10:16:33.994Z level=INFO msg="Upload complete. (662ms)"