this derivation will be built:
  /nix/store/10lpq9ka0p7vbnmw1l8ra9d27c6njar8-treefmt-check.drv
building '/nix/store/10lpq9ka0p7vbnmw1l8ra9d27c6njar8-treefmt-check.drv'
treefmt-check> traversed 439 files
treefmt-check> emitted 305 files for processing
treefmt-check> formatted 305 files (0 changed) in 18.788s

post-build step Upload to niks3: ok
time=2026-08-19T21:15:00.739Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-19T21:15:01.219Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-19T21:15:01.592Z level=INFO msg="Upload complete. (932ms)"