this derivation will be built:
  /nix/store/b9qcwc7qr1qnin3al0mi2y2qkw3zhps5-treefmt-check.drv
building '/nix/store/b9qcwc7qr1qnin3al0mi2y2qkw3zhps5-treefmt-check.drv'
treefmt-check> traversed 439 files
treefmt-check> emitted 305 files for processing
treefmt-check> formatted 305 files (0 changed) in 17.603s

post-build step Upload to niks3: ok
time=2026-08-19T18:32:28.189Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-19T18:32:28.647Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-19T18:32:29.020Z level=INFO msg="Upload complete. (909ms)"