this derivation will be built:
  /nix/store/c09gb1kkvbbn7m6b1nc07f09pqph84cb-treefmt-check.drv
building '/nix/store/c09gb1kkvbbn7m6b1nc07f09pqph84cb-treefmt-check.drv'
treefmt-check> traversed 427 files
treefmt-check> emitted 299 files for processing
treefmt-check> formatted 299 files (0 changed) in 17.765s

post-build step Upload to niks3: ok
time=2026-08-15T04:41:03.151Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-15T04:41:03.512Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-15T04:41:03.801Z level=INFO msg="Upload complete. (770ms)"