this derivation will be built:
  /nix/store/rm01vrbmf3lf60j6vdc5b97lh7wwd45d-treefmt-check.drv
building '/nix/store/rm01vrbmf3lf60j6vdc5b97lh7wwd45d-treefmt-check.drv'
treefmt-check> traversed 427 files
treefmt-check> emitted 299 files for processing
treefmt-check> formatted 299 files (0 changed) in 18.415s

post-build step Upload to niks3: ok
time=2026-08-14T18:27:43.846Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-14T18:27:44.230Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-14T18:27:44.549Z level=INFO msg="Upload complete. (846ms)"