this derivation will be built:
  /nix/store/s3p6xyag85r1jaq8hk1m7z7ckkkan2cy-treefmt-check.drv
building '/nix/store/s3p6xyag85r1jaq8hk1m7z7ckkkan2cy-treefmt-check.drv'
treefmt-check> traversed 203 files
treefmt-check> emitted 103 files for processing
treefmt-check> formatted 103 files (0 changed) in 606ms

post-build step Upload to niks3: ok
time=2026-08-19T14:12:46.975Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-08-19T14:12:47.829Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-19T14:12:48.303Z level=INFO msg="Upload complete. (1.35s)"