these 21 derivations will be built:
  /nix/store/pmfvmzfbccf8yd17mja8gy870xl6hyp2-nixos-26.11.20260818.f165e44.drv
  /nix/store/06idy0f6yzmlnihlh8az52rk3q9g1276-unit-script-nix-channel-init-start.drv
  /nix/store/l9jp4fhdvp1xq3jadkh49b8n8g874q3x-system-path.drv
  /nix/store/k9bp4jyygm517vdp3g88090g1mgiapsq-X-Restart-Triggers-polkit.drv
  /nix/store/1lpkf57aq3nvphrxjfvrw4x8i4dgx24n-unit-polkit.service.drv
  /nix/store/hsq8921riqvlk217njx1j30lmq6g9ika-dbus-1.drv
  /nix/store/cgcsfgmdd7y25qyz8p9cscijpxbf41fa-X-Restart-Triggers-dbus-broker.drv
  /nix/store/3apbsrrbdr3fpn2qyjaw5xz0359npmwb-unit-dbus-broker.service.drv
  /nix/store/5v0pnma3zdq2jj1w3zcpbfv82gyr96j3-etc-os-release.drv
  /nix/store/fxw9a49f79dlbzxs5fnvmxi6r7sgvygj-shutdown-ramfs-contents.json.drv
  /nix/store/52jccij26incqkrardsaf0p2lvvl4d6x-unit-generate-shutdown-ramfs.service.drv
  /nix/store/72hi0rgs845qlvffdkywcgjai31i99rs-issue.drv
  /nix/store/7sfyzha941ak17k9ha83msfqlsvw6fy3-unit-nix-channel-init.service.drv
  /nix/store/sxkhjr7kdbnhfz99192adcf12980qdcl-unit-dbus-broker.service.drv
  /nix/store/ijzzjvz04c344q3qm6ahzflz9bsjbbsk-system-units.drv
  /nix/store/kdgz11wxmm58b60kr1ki74nl4zdvlhcs-user-units.drv
  /nix/store/khchaxhbzyhslaqy1isxvc7nrcg8q557-etc-nix-registry.json.drv
  /nix/store/6pz104a7xmz8cpyl18gwqchrg1by1slx-etc.drv
  /nix/store/7wh1a7rzm70nhw72rp3yh8yx6cxqgwns-activate.drv
  /nix/store/qmdya1n0qcgk7lffyys1fjc2mnrhfsvp-boot.json.drv
  /nix/store/vxi9v3jzv91k4nkxpq46bbvkgfnkyksi-nixos-system-flash-installer-26.11.20260818.f165e44.drv
this path will be fetched (1.4 MiB download, 1.4 MiB unpacked):
  /nix/store/zarrp807961dyrjrj5kxsh0j9hzn516l-nixos-configuration-reference-manpage
building '/nix/store/5v0pnma3zdq2jj1w3zcpbfv82gyr96j3-etc-os-release.drv'
building '/nix/store/72hi0rgs845qlvffdkywcgjai31i99rs-issue.drv'
building '/nix/store/fxw9a49f79dlbzxs5fnvmxi6r7sgvygj-shutdown-ramfs-contents.json.drv'
building '/nix/store/52jccij26incqkrardsaf0p2lvvl4d6x-unit-generate-shutdown-ramfs.service.drv'
unit-generate-shutdown-ramfs.service> structuredAttrs is enabled

post-build step Upload to niks3: ok
time=2026-08-18T20:04:15.113Z level=INFO msg="Uploading 2 paths to niks3.clan.lol (776 already cached)"
time=2026-08-18T20:04:15.113Z level=INFO msg="Uploading npfl7vm3q42bkkg3v9k25yl7dll4ah24-nixos-26.11.20260818.f165e44 (202.6MB)"
time=2026-08-18T20:04:15.113Z level=INFO msg="Uploading fs95psyj66ydvfjf9vgfw52z8mdn543f-system-units (145.6KB)"
time=2026-08-18T20:04:16.122Z 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/fs95psyj66ydvfjf9vgfw52z8mdn543f.ls?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=003eaae730241090000000009%2F20260818%2Feu-central-003%2Fs3%2Faws4_request&X-Amz-Date=20260818T200415Z&X-Amz-Expires=18000&X-Amz-SignedHeaders=host&X-Amz-Signature=50f3f98ff7196fd3895bda44ac32a78d21dde1563cb4c90acdeca1e7b5441be3"
time=2026-08-18T20:04:22.145Z level=ERROR msg="Failed to close zstd encoder" error="io: read/write on closed pipe"
time=2026-08-18T20:04:22.150Z level=INFO msg="Uploading 21 narinfos"
time=2026-08-18T20:04:24.615Z level=INFO msg="Upload complete. (9.713s)"