this derivation will be built:
  /nix/store/81ibviq5ar1sq0fpnpnn7xdpbxv8b9nj-treefmt-check.drv
building '/nix/store/81ibviq5ar1sq0fpnpnn7xdpbxv8b9nj-treefmt-check.drv' on 'ssh-ng://builder@build01.clan.lol'
building '/nix/store/81ibviq5ar1sq0fpnpnn7xdpbxv8b9nj-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 1087 files
treefmt-check> emitted 926 files for processing
treefmt-check> formatted 926 files (0 changed) in 19.446s

post-build step Upload to niks3: ok
time=2026-08-14T20:01:33.284Z level=INFO msg="Uploading 0 paths to niks3.clan.lol (1 already cached)"
time=2026-08-14T20:01:38.591Z 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/81ibviq5ar1sq0fpnpnn7xdpbxv8b9nj-treefmt-check.drv?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=003eaae730241090000000009%2F20260814%2Feu-central-003%2Fs3%2Faws4_request&X-Amz-Date=20260814T200133Z&X-Amz-Expires=18000&X-Amz-SignedHeaders=host&X-Amz-Signature=16b163f1d5ed6e689a0abb28beb249a80b551903b713cfeb0440419cbccc877e"
time=2026-08-14T20:01:38.803Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-14T20:01:44.259Z 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/10d3qcnc6v5y2jnimjqv14f18h1g3mqs.narinfo?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=003eaae730241090000000009%2F20260814%2Feu-central-003%2Fs3%2Faws4_request&X-Amz-Date=20260814T200133Z&X-Amz-Expires=18000&X-Amz-SignedHeaders=host&X-Amz-Signature=a2066604182ac1afcb04896dc204754fc326e9a40608015a2ea0e34b3be1d861"
time=2026-08-14T20:01:46.100Z level=INFO msg="Upload complete. (12.866s)"