this derivation will be built:
  /nix/store/iim6kl3ch64lji7z07amhlagbcpwfyd5-nix-shell.drv
building '/nix/store/iim6kl3ch64lji7z07amhlagbcpwfyd5-nix-shell.drv'
nix-shell> Running phase: buildPhase

post-build step Upload to niks3: ok
time=2026-08-17T20:02:13.066Z level=INFO msg="Uploading 1 paths to niks3.clan.lol (223 already cached)"
time=2026-08-17T20:02:13.066Z level=INFO msg="Uploading 13wgskwqck89b0s6yb7yfk3483wfx8if-nix-shell (6.7KB)"
time=2026-08-17T20:02:19.423Z 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/l3s3mq2dxshvpf7qmyqip17sxzbjz78v-generated-docs.drv?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=003eaae730241090000000009%2F20260817%2Feu-central-003%2Fs3%2Faws4_request&X-Amz-Date=20260817T200213Z&X-Amz-Expires=18000&X-Amz-SignedHeaders=host&X-Amz-Signature=1620f3d99a12a52f01bd34856d75f63cfcaa4bdb7bc92b9a7c340578629cf199"
time=2026-08-17T20:02:19.839Z level=INFO msg="Uploading 2 narinfos"
time=2026-08-17T20:02:20.523Z level=INFO msg="Upload complete. (7.68s)"