this derivation will be built:
  /nix/store/vx9xzp12mpyjc2fjk7fvdjv4zgaj6v7a-treefmt-check.drv
building '/nix/store/vx9xzp12mpyjc2fjk7fvdjv4zgaj6v7a-treefmt-check.drv'
treefmt-check> traversed 446 files
treefmt-check> emitted 311 files for processing
treefmt-check> formatted 311 files (0 changed) in 18.507s

post-build step Upload to niks3: ok
time=2026-08-22T18:13:06.811Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-22T18:13:07.506Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-22T18:13:07.905Z level=INFO msg="Upload complete. (1.337s)"