this derivation will be built:
  /nix/store/8mlzalamfjs0fzhb1bdwjmq1kr58wr1f-treefmt-check.drv
building '/nix/store/8mlzalamfjs0fzhb1bdwjmq1kr58wr1f-treefmt-check.drv'
treefmt-check> traversed 428 files
treefmt-check> emitted 300 files for processing
treefmt-check> formatted 300 files (0 changed) in 3.305s

post-build step Upload to niks3: ok
time=2026-08-15T18:16:29.778Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-15T18:16:30.106Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-15T18:16:30.501Z level=INFO msg="Upload complete. (783ms)"