this derivation will be built:
  /nix/store/nk8ld58ywv0vs89ssyf7vr9qvz91i1jd-treefmt-check.drv
building '/nix/store/nk8ld58ywv0vs89ssyf7vr9qvz91i1jd-treefmt-check.drv'
treefmt-check> traversed 436 files
treefmt-check> emitted 304 files for processing
treefmt-check> formatted 304 files (0 changed) in 2.081s

post-build step Upload to niks3: ok
time=2026-08-16T13:43:49.233Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-16T13:43:49.694Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-16T13:43:50.006Z level=INFO msg="Upload complete. (846ms)"