this derivation will be built:
  /nix/store/nn4zv5cyzvkf0mj2v00xww3vh10xjyh0-treefmt-check.drv
building '/nix/store/nn4zv5cyzvkf0mj2v00xww3vh10xjyh0-treefmt-check.drv'
treefmt-check> traversed 439 files
treefmt-check> emitted 305 files for processing
treefmt-check> formatted 305 files (0 changed) in 17.364s

post-build step Upload to niks3: ok
time=2026-08-19T04:21:29.405Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-19T04:21:29.810Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-19T04:21:30.164Z level=INFO msg="Upload complete. (850ms)"