these 8 derivations will be built:
  /nix/store/y11xa0wsfg50kd9l7sb5r1dc8bvd30hm-nixos-26.11.20260818.b47ad65.drv
  /nix/store/0y6fl35ch5zc5pp6zdqj38ghhaf55gqp-unit-script-nix-channel-init-start.drv
  /nix/store/6fa9vzz048pn26hs5d906jj9fsi40839-unit-nix-channel-init.service.drv
  /nix/store/mbv9d710fcb4rimh7yc5mp1nhkrdf87n-system-units.drv
  /nix/store/n9yq73hf5wk2xfvxdq5fd5li8xzf03mq-etc-nix-registry.json.drv
  /nix/store/c9inw3jsw72dy2r5ads8d579ixd91fhv-etc.drv
  /nix/store/h38gdrggaiis86a4l5sjbsi9cjkq3s8z-activate.drv
  /nix/store/jgfp7pmcydj0rpz85w382b6bzxj0cbhx-nixos-system-flash-installer-26.11.20260818.b47ad65.drv

post-build step Upload to niks3: ok
time=2026-08-19T00:03:20.482Z level=INFO msg="Uploading 6 paths to niks3.clan.lol (772 already cached)"
time=2026-08-19T00:03:20.482Z level=INFO msg="Uploading h6ypm0cxwpp98gi8ymb8nyxrddgmyy4h-etc-os-release (632B)"
time=2026-08-19T00:03:20.482Z level=INFO msg="Uploading 6syfaafwfdv90lm1vacdsg5p1lwn862j-unit-dbus-broker.service (1.4KB)"
time=2026-08-19T00:03:20.482Z level=INFO msg="Uploading 45rph838zzvccybbamv5fvcggmdhw3cg-unit-polkit.service (1.4KB)"
time=2026-08-19T00:03:20.484Z level=INFO msg="Uploading 03md9y6dd2pn0i3ncgqjvq18ic121jz9-user-units (11.8KB)"
time=2026-08-19T00:03:20.486Z level=INFO msg="Uploading j0ibi4pvx27aqf8l9a36nbpkjb5ix0vk-X-Restart-Triggers-dbus-broker (168B)"
time=2026-08-19T00:03:20.485Z level=INFO msg="Uploading k15dd0p5sqifw8mjnra612zxwxawjrbn-nixos-26.11.20260818.b47ad65 (202.6MB)"
time=2026-08-19T00:03:25.577Z 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/d34mcc85lx07rwl3cb1cj6z1ximm1pq1.ls?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=003eaae730241090000000009%2F20260819%2Feu-central-003%2Fs3%2Faws4_request&X-Amz-Date=20260819T000320Z&X-Amz-Expires=18000&X-Amz-SignedHeaders=host&X-Amz-Signature=54067db91799ba849fd9185d434644dfa7dfe89dafb05da889e8c7e6cf8c1251"
time=2026-08-19T00:03:29.102Z level=WARN msg="Rate limiter enabled after throttle" name=s3 rate=5
time=2026-08-19T00:03:29.102Z level=WARN msg="Request returned retryable status, retrying" attempt=1 max_attempts=6 backoff=0s status=503 url="https://s3.eu-central-003.backblazeb2.com/clan-cache-geninf/log/41j7fq2bj46p5v762q5wbd4qb7fjf30b-etc-os-release.drv?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=003eaae730241090000000009%2F20260819%2Feu-central-003%2Fs3%2Faws4_request&X-Amz-Date=20260819T000320Z&X-Amz-Expires=18000&X-Amz-SignedHeaders=host&X-Amz-Signature=a36291e482adc584b09b7fe3cb1be68c842ba29f243c6b8c91e207593b1bf71d"
time=2026-08-19T00:03:32.294Z 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/nar/0mda6dpvizwlck8g4hq5s3krbs0ni44y0fr6618mpxrbbrdl4ca7.nar.zst?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=003eaae730241090000000009%2F20260819%2Feu-central-003%2Fs3%2Faws4_request&X-Amz-Date=20260819T000320Z&X-Amz-Expires=18000&X-Amz-SignedHeaders=host&X-Amz-Signature=8e1e7505ad460351ab6ae49644e377e23e6354b710d1690d2e68c79f51cbfddc"
time=2026-08-19T00:03:34.069Z level=ERROR msg="Failed to close zstd encoder" error="io: read/write on closed pipe"
time=2026-08-19T00:03:34.072Z level=INFO msg="Uploading 21 narinfos"
time=2026-08-19T00:03:37.256Z level=WARN msg="Rate limiter backed off" name=s3 rate=5
time=2026-08-19T00:03:37.256Z level=WARN msg="Request returned retryable status, retrying" attempt=1 max_attempts=6 backoff=0s status=503 url="https://s3.eu-central-003.backblazeb2.com/clan-cache-geninf/0vlapb321gkd0zkmww453w8fsysbr4q7.narinfo?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=003eaae730241090000000009%2F20260819%2Feu-central-003%2Fs3%2Faws4_request&X-Amz-Date=20260819T000320Z&X-Amz-Expires=18000&X-Amz-SignedHeaders=host&X-Amz-Signature=d21c03e602a950b869bdfe7b1312e8ae7afd916923ef87a64a000d1d49cb43af"
time=2026-08-19T00:03:41.953Z level=WARN msg="Rate limiter backed off" name=s3 rate=5
time=2026-08-19T00:03:41.953Z level=WARN msg="Request returned retryable status, retrying" attempt=1 max_attempts=6 backoff=0s status=503 url="https://s3.eu-central-003.backblazeb2.com/clan-cache-geninf/15cwajz22img66b6gwwngq72gl8hkskq.narinfo?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=003eaae730241090000000009%2F20260819%2Feu-central-003%2Fs3%2Faws4_request&X-Amz-Date=20260819T000320Z&X-Amz-Expires=18000&X-Amz-SignedHeaders=host&X-Amz-Signature=608d186deb2f50cfa5fb3c2a375ba7e9eec2604b456933c49314a2a2a089c288"
time=2026-08-19T00:03:43.824Z level=WARN msg="Rate limiter backed off" name=s3 rate=5
time=2026-08-19T00:03:43.824Z level=WARN msg="Request returned retryable status, retrying" attempt=1 max_attempts=6 backoff=0s status=503 url="https://s3.eu-central-003.backblazeb2.com/clan-cache-geninf/82y2s8kvl5p7lxp6ck6312s5rvikzdz3.narinfo?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=003eaae730241090000000009%2F20260819%2Feu-central-003%2Fs3%2Faws4_request&X-Amz-Date=20260819T000320Z&X-Amz-Expires=18000&X-Amz-SignedHeaders=host&X-Amz-Signature=9c4f60f785f8e539edc037c1787095acf9c0fbd58a7c545bf776c8fd17f46820"
time=2026-08-19T00:03:45.346Z level=WARN msg="Rate limiter backed off" name=s3 rate=5
time=2026-08-19T00:03:45.346Z level=WARN msg="Request returned retryable status, retrying" attempt=2 max_attempts=6 backoff=0s status=503 url="https://s3.eu-central-003.backblazeb2.com/clan-cache-geninf/82y2s8kvl5p7lxp6ck6312s5rvikzdz3.narinfo?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=003eaae730241090000000009%2F20260819%2Feu-central-003%2Fs3%2Faws4_request&X-Amz-Date=20260819T000320Z&X-Amz-Expires=18000&X-Amz-SignedHeaders=host&X-Amz-Signature=9c4f60f785f8e539edc037c1787095acf9c0fbd58a7c545bf776c8fd17f46820"
time=2026-08-19T00:04:00.266Z level=INFO msg="Upload complete. (40.189s)"