this derivation will be built:
  /nix/store/gzb9fwj5gz8i00zrcs6fyq4r1yq5r7g1-treefmt-check.drv
building '/nix/store/gzb9fwj5gz8i00zrcs6fyq4r1yq5r7g1-treefmt-check.drv'
treefmt-check> traversed 454 files
treefmt-check> emitted 317 files for processing
treefmt-check> formatted 317 files (0 changed) in 2.821s

post-build step Upload to niks3: ok
time=2026-08-27T21:26:28.518Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-27T21:26:28.888Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-27T21:26:29.233Z level=INFO msg="Upload complete. (894ms)"