this derivation will be built:
  /nix/store/15ysc0c2vhhpgh4dpgwj7pj6g4yl7m9b-treefmt-check.drv
building '/nix/store/15ysc0c2vhhpgh4dpgwj7pj6g4yl7m9b-treefmt-check.drv'
treefmt-check> traversed 450 files
treefmt-check> emitted 315 files for processing
treefmt-check> formatted 315 files (0 changed) in 17.756s

post-build step Upload to niks3: ok
time=2026-08-21T20:25:56.146Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-21T20:25:56.540Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-21T20:25:57.145Z level=INFO msg="Upload complete. (1.122s)"