this derivation will be built:
  /nix/store/k4p3z25zmyhsaxyyw84b9r8lcbwna2r0-treefmt-check.drv
building '/nix/store/k4p3z25zmyhsaxyyw84b9r8lcbwna2r0-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 504 files
treefmt-check> emitted 348 files for processing
treefmt-check> formatted 348 files (0 changed) in 822ms

post-build step Upload to niks3: ok
time=2026-08-20T16:20:38.837Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-08-20T16:20:44.208Z level=WARN msg="Request returned retryable status, retrying" attempt=1 max_attempts=6 backoff=100ms status=500 url="https://s3.eu-central-003.backblazeb2.com/geninf-cache/b8nqgvkxx1knrnhcw66vj03hd2wg87iw.ls?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=003eaae730241090000000002%2F20260820%2Feu-central-003%2Fs3%2Faws4_request&X-Amz-Date=20260820T162038Z&X-Amz-Expires=18000&X-Amz-SignedHeaders=host&X-Amz-Signature=0fdb31e8c86b47ff46f7ddc3fa3a1964f3477cabeae64a3f6e765820216b8f5b"
time=2026-08-20T16:20:44.415Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-20T16:20:44.664Z level=INFO msg="Upload complete. (5.86s)"