this derivation will be built:
  /nix/store/59fwmwllmf75nb7a9s8crg8i9jg3a5nx-treefmt-check.drv
building '/nix/store/59fwmwllmf75nb7a9s8crg8i9jg3a5nx-treefmt-check.drv'
treefmt-check> traversed 522 files
treefmt-check> emitted 281 files for processing
treefmt-check> formatted 281 files (0 changed) in 1.425s

post-build step Upload to niks3: ok
time=2026-09-21T13:04:14.762Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-21T13:04:14.872Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-21T13:04:15.022Z level=INFO msg="Upload complete. (280ms)"