this derivation will be built:
  /nix/store/cd00a0r2miz22kcb9420b1jrvl6v4val-nix-shell.drv
building '/nix/store/cd00a0r2miz22kcb9420b1jrvl6v4val-nix-shell.drv'
nix-shell> Running phase: buildPhase

post-build step Upload to niks3: ok
time=2026-08-14T20:22:30.360Z level=INFO msg="Uploading 1 paths to niks3.clan.lol (216 already cached)"
time=2026-08-14T20:22:30.360Z level=INFO msg="Uploading rv3m95c9a6jdhw2vyp4c3aai670sqygh-nix-shell (6.7KB)"
time=2026-08-14T20:22:30.614Z 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/clan-cache-geninf/log/cd00a0r2miz22kcb9420b1jrvl6v4val-nix-shell.drv?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=003eaae730241090000000009%2F20260814%2Feu-central-003%2Fs3%2Faws4_request&X-Amz-Date=20260814T202230Z&X-Amz-Expires=18000&X-Amz-SignedHeaders=host&X-Amz-Signature=07e18272e1f001a0634841894736f49621d618bf78963464b0eefa0b6bba281b"
time=2026-08-14T20:22:33.138Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-14T20:22:38.589Z level=INFO msg="Upload complete. (8.428s)"