this derivation will be built:
  /nix/store/zs4a2xl5rxidn0if08vj81alih31fi93-treefmt-check.drv
building '/nix/store/zs4a2xl5rxidn0if08vj81alih31fi93-treefmt-check.drv'
treefmt-check> traversed 471 files
treefmt-check> emitted 243 files for processing
treefmt-check> formatted 243 files (0 changed) in 1.222s

post-build step Upload to niks3: ok
time=2026-09-18T19:13:39.176Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-18T19:13:39.647Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-18T19:13:40.388Z level=INFO msg="Upload complete. (1.23s)"