this derivation will be built:
  /nix/store/2ls47964ii5ypqkcnmrsl0lxfxh0rbrn-treefmt-check.drv
building '/nix/store/2ls47964ii5ypqkcnmrsl0lxfxh0rbrn-treefmt-check.drv'
treefmt-check> traversed 446 files
treefmt-check> emitted 311 files for processing
treefmt-check> formatted 311 files (0 changed) in 2.567s

post-build step Upload to niks3: ok
time=2026-08-20T18:42:26.575Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-20T18:42:27.134Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-20T18:42:27.559Z level=INFO msg="Upload complete. (1.05s)"