this derivation will be built:
  /nix/store/j1k298lkw6rpq7lsb6prb2vpc298jbvb-treefmt-check.drv
building '/nix/store/j1k298lkw6rpq7lsb6prb2vpc298jbvb-treefmt-check.drv'
treefmt-check> traversed 428 files
treefmt-check> emitted 300 files for processing
treefmt-check> formatted 300 files (0 changed) in 17.714s

post-build step Upload to niks3: ok
time=2026-08-15T18:19:05.000Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-15T18:19:05.407Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-15T18:19:05.753Z level=INFO msg="Upload complete. (825ms)"