this derivation will be built:
  /nix/store/3k8ck3nf7x1zpvp2d4b4mnq6irv8v1cl-treefmt-check.drv
building '/nix/store/3k8ck3nf7x1zpvp2d4b4mnq6irv8v1cl-treefmt-check.drv'
treefmt-check> traversed 439 files
treefmt-check> emitted 305 files for processing
treefmt-check> formatted 305 files (0 changed) in 27.196s

post-build step Upload to niks3: ok
time=2026-08-19T21:27:07.771Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-19T21:27:08.158Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-19T21:27:08.460Z level=INFO msg="Upload complete. (766ms)"