this derivation will be built:
  /nix/store/2pqg6m3vrp9vlsnvpxn0mywli346da16-treefmt-check.drv
building '/nix/store/2pqg6m3vrp9vlsnvpxn0mywli346da16-treefmt-check.drv'
treefmt-check> traversed 439 files
treefmt-check> emitted 305 files for processing
treefmt-check> formatted 305 files (0 changed) in 17.904s

post-build step Upload to niks3: ok
time=2026-08-17T21:12:57.822Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-17T21:12:58.225Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-17T21:12:58.664Z level=INFO msg="Upload complete. (909ms)"