this derivation will be built:
  /nix/store/s1axrq2ka7idrv5dq22d60wqk0f4yk2k-treefmt-check.drv
building '/nix/store/s1axrq2ka7idrv5dq22d60wqk0f4yk2k-treefmt-check.drv'
treefmt-check> traversed 333 files
treefmt-check> emitted 160 files for processing
treefmt-check> formatted 160 files (0 changed) in 967ms

post-build step Upload to niks3: ok
time=2026-09-17T09:49:47.178Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-17T09:49:47.844Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-17T09:49:48.032Z level=INFO msg="Upload complete. (877ms)"