this derivation will be built:
  /nix/store/3kyzdzi1fyxcwclf0a7lhsxjnkkqkqc7-treefmt-check.drv
building '/nix/store/3kyzdzi1fyxcwclf0a7lhsxjnkkqkqc7-treefmt-check.drv'
treefmt-check> traversed 434 files
treefmt-check> emitted 303 files for processing
treefmt-check> formatted 303 files (0 changed) in 16.929s

post-build step Upload to niks3: ok
time=2026-08-15T21:38:20.652Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-15T21:38:20.994Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-15T21:38:21.331Z level=INFO msg="Upload complete. (746ms)"