this derivation will be built:
  /nix/store/l2ac0g73jf9jr7f8sgiy23fhiv0flfzy-treefmt-check.drv
building '/nix/store/l2ac0g73jf9jr7f8sgiy23fhiv0flfzy-treefmt-check.drv'
treefmt-check> traversed 491 files
treefmt-check> emitted 260 files for processing
treefmt-check> formatted 260 files (0 changed) in 1.272s

post-build step Upload to niks3: ok
time=2026-09-19T15:16:16.592Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-19T15:16:16.850Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-19T15:16:17.256Z level=INFO msg="Upload complete. (685ms)"