this derivation will be built:
  /nix/store/gi4cp557yq3srg6pzkyzb5jqi7qmzzp0-treefmt-check.drv
building '/nix/store/gi4cp557yq3srg6pzkyzb5jqi7qmzzp0-treefmt-check.drv'
treefmt-check> traversed 484 files
treefmt-check> emitted 254 files for processing
treefmt-check> formatted 254 files (0 changed) in 1.298s

post-build step Upload to niks3: ok
time=2026-09-19T09:06:21.792Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-19T09:06:22.284Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-19T09:06:22.396Z level=INFO msg="Upload complete. (629ms)"