this derivation will be built:
  /nix/store/9qmwwr422ahriphl6k3bpc2n5vvpqxfb-treefmt-check.drv
building '/nix/store/9qmwwr422ahriphl6k3bpc2n5vvpqxfb-treefmt-check.drv'
treefmt-check> traversed 350 files
treefmt-check> emitted 171 files for processing
treefmt-check> formatted 171 files (0 changed) in 949ms

post-build step Upload to niks3: ok
time=2026-09-17T17:52:23.771Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-17T17:52:24.216Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-17T17:52:24.383Z level=INFO msg="Upload complete. (635ms)"