this derivation will be built:
  /nix/store/5w4w39311dl1v8dvmc1yv5qxm5fcl9f4-treefmt-check.drv
building '/nix/store/5w4w39311dl1v8dvmc1yv5qxm5fcl9f4-treefmt-check.drv'
treefmt-check> traversed 437 files
treefmt-check> emitted 312 files for processing
treefmt-check> formatted 312 files (0 changed) in 17.408s

post-build step Upload to niks3: ok
time=2026-08-13T18:37:08.855Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-13T18:37:09.254Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-13T18:37:09.873Z level=INFO msg="Upload complete. (1.103s)"