these 21 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/41j7fq2bj46p5v762q5wbd4qb7fjf30b-etc-os-release.drv
  /nix/store/2jjyrmjq879paabz10hrmqva5zknv9rw-shutdown-ramfs-contents.json.drv
  /nix/store/52bc29zsijcbkbwaay5vi3hn1ba5bdip-system-path.drv
  /nix/store/crg93x99i5i55qlbk3gf8db5awhxv85z-dbus-1.drv
  /nix/store/2zqrpsd5527sfna85q9fnarc3lmf9rjk-X-Restart-Triggers-dbus-broker.drv
  /nix/store/5rmgdirngps8lf1fvsal7xm40qvwwr2f-issue.drv
  /nix/store/6fa9vzz048pn26hs5d906jj9fsi40839-unit-nix-channel-init.service.drv
  /nix/store/bbg7qx64xf7aqzm8lwkgwn4420z0lgfq-unit-dbus-broker.service.drv
  /nix/store/nlzsz42vdy6cjqlfvcwfa68g95h9fpb2-unit-dbus-broker.service.drv
  /nix/store/jrg23canzn1f89dhzmwf0c1npnv6ixmp-X-Restart-Triggers-polkit.drv
  /nix/store/r9y1ql3jj2lb3zwmwhpgxjhg7mwww6vk-unit-polkit.service.drv
  /nix/store/w23gs6lzw0qn9jy40n3q7nqb7y075bmf-unit-generate-shutdown-ramfs.service.drv
  /nix/store/mbv9d710fcb4rimh7yc5mp1nhkrdf87n-system-units.drv
  /nix/store/n9yq73hf5wk2xfvxdq5fd5li8xzf03mq-etc-nix-registry.json.drv
  /nix/store/xcmsz6mxs63csd50kds65jm3n990d9m1-user-units.drv
  /nix/store/c9inw3jsw72dy2r5ads8d579ixd91fhv-etc.drv
  /nix/store/h38gdrggaiis86a4l5sjbsi9cjkq3s8z-activate.drv
  /nix/store/izp4nrjkd66sm6288xzz07qmnaxhm4rm-boot.json.drv
  /nix/store/jgfp7pmcydj0rpz85w382b6bzxj0cbhx-nixos-system-flash-installer-26.11.20260818.b47ad65.drv
building '/nix/store/41j7fq2bj46p5v762q5wbd4qb7fjf30b-etc-os-release.drv'
building '/nix/store/5rmgdirngps8lf1fvsal7xm40qvwwr2f-issue.drv'
building '/nix/store/2jjyrmjq879paabz10hrmqva5zknv9rw-shutdown-ramfs-contents.json.drv'
building '/nix/store/w23gs6lzw0qn9jy40n3q7nqb7y075bmf-unit-generate-shutdown-ramfs.service.drv'
unit-generate-shutdown-ramfs.service> structuredAttrs is enabled

post-build step Upload to niks3: ok
time=2026-08-19T00:03:22.896Z level=INFO msg="Uploading 2 paths to niks3.clan.lol (776 already cached)"
time=2026-08-19T00:03:22.897Z level=INFO msg="Uploading h6ypm0cxwpp98gi8ymb8nyxrddgmyy4h-etc-os-release (632B)"
time=2026-08-19T00:03:22.897Z level=INFO msg="Uploading k15dd0p5sqifw8mjnra612zxwxawjrbn-nixos-26.11.20260818.b47ad65 (202.6MB)"
time=2026-08-19T00:03:29.637Z level=ERROR msg="Failed to close zstd encoder" error="io: read/write on closed pipe"
time=2026-08-19T00:03:29.641Z level=INFO msg="Uploading 21 narinfos"
time=2026-08-19T00:03:34.790Z 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/82y2s8kvl5p7lxp6ck6312s5rvikzdz3.narinfo?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=003eaae730241090000000009%2F20260819%2Feu-central-003%2Fs3%2Faws4_request&X-Amz-Date=20260819T000322Z&X-Amz-Expires=18000&X-Amz-SignedHeaders=host&X-Amz-Signature=78d8d428a042a5ffa8b0a79101ddd8d11b205f22f040b0d827ba10d09df4e2d8"
time=2026-08-19T00:03:34.880Z 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.narinfo?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=003eaae730241090000000009%2F20260819%2Feu-central-003%2Fs3%2Faws4_request&X-Amz-Date=20260819T000322Z&X-Amz-Expires=18000&X-Amz-SignedHeaders=host&X-Amz-Signature=97438cea8cb2b02e855043cf3323e5dae90d2aaa1800b59893c6672342047dc5"
time=2026-08-19T00:03:35.254Z 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/hm0s8b9lmflq5bkpjj8xpa443ksr4alc.narinfo?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=003eaae730241090000000009%2F20260819%2Feu-central-003%2Fs3%2Faws4_request&X-Amz-Date=20260819T000322Z&X-Amz-Expires=18000&X-Amz-SignedHeaders=host&X-Amz-Signature=67a5f8a271d9bf9817bd5c1ffe6ea4aa40ef8f47c776c39b330eb6ee062efb07"
time=2026-08-19T00:03:35.326Z 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/03md9y6dd2pn0i3ncgqjvq18ic121jz9.narinfo?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=003eaae730241090000000009%2F20260819%2Feu-central-003%2Fs3%2Faws4_request&X-Amz-Date=20260819T000322Z&X-Amz-Expires=18000&X-Amz-SignedHeaders=host&X-Amz-Signature=bc1b038f3ec01f4f62ecfeb144e49a19f395a0e6e3589c1a73697b3a967f2d6e"
time=2026-08-19T00:03:44.502Z level=INFO msg="Upload complete. (22.845s)"