this derivation will be built:
  /nix/store/yi6yyg0cymnfr9fm4b4wg8bsinlx8bn0-treefmt-check.drv
building '/nix/store/yi6yyg0cymnfr9fm4b4wg8bsinlx8bn0-treefmt-check.drv'
treefmt-check> traversed 437 files
treefmt-check> emitted 312 files for processing
treefmt-check> formatted 312 files (0 changed) in 2.678s

post-build step Upload to niks3: ok
time=2026-08-13T18:29:38.411Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-13T18:29:38.893Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-13T18:29:39.199Z level=INFO msg="Upload complete. (841ms)"