this derivation will be built:
  /nix/store/572l0fwsvyg2w9v7jxr0lxk3dxmfhr7a-treefmt-check.drv
building '/nix/store/572l0fwsvyg2w9v7jxr0lxk3dxmfhr7a-treefmt-check.drv'
treefmt-check> traversed 427 files
treefmt-check> emitted 299 files for processing
treefmt-check> formatted 299 files (0 changed) in 13.103s

post-build step Upload to niks3: ok
time=2026-08-15T00:16:55.806Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-15T00:16:56.208Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-15T00:16:56.507Z level=INFO msg="Upload complete. (774ms)"