this derivation will be built:
  /nix/store/1yjsw4wzamamz4d8ksn7ywd0v1qq3rmn-treefmt-check.drv
building '/nix/store/1yjsw4wzamamz4d8ksn7ywd0v1qq3rmn-treefmt-check.drv'
treefmt-check> traversed 439 files
treefmt-check> emitted 305 files for processing
treefmt-check> formatted 305 files (0 changed) in 2.255s

post-build step Upload to niks3: ok
time=2026-08-19T18:10:17.389Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-19T18:10:18.018Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-19T18:10:18.478Z level=INFO msg="Upload complete. (1.191s)"