these 8 derivations will be built:
  /nix/store/dnf6gqd06sj5dqifi21j9pz1l8vhan8n-nixos-26.11.20260820.391b592.drv
  /nix/store/08527spjklx0fs40h1yn2a4k202ksx6i-etc-nix-registry.json.drv
  /nix/store/kgj7sy6w5sq40zmbh2wyrv7n2c5ibf7h-unit-script-nix-channel-init-start.drv
  /nix/store/mvagdkdnfrcdjxf0vw30qnik5p0pxcbk-unit-nix-channel-init.service.drv
  /nix/store/gkhpfv6lpfzc584nfafi0kji05vl3bnw-system-units.drv
  /nix/store/hbf8z8lnls2ck2k4lfj9cy9q69jgpdf3-etc.drv
  /nix/store/6wwp3xj71a99jw47l5icp7z1nc0m3wgh-activate.drv
  /nix/store/98hnb61bxcbf0ibc0awj92pjhsr89plc-nixos-system-flash-installer-26.11.20260820.391b592.drv

post-build step Upload to niks3: ok
time=2026-08-21T20:03:27.824Z level=INFO msg="Uploading 1 paths to niks3.clan.lol (777 already cached)"
time=2026-08-21T20:03:27.825Z level=INFO msg="Uploading 7083ngppbr79mdd6di58cd0igm9qp3ih-nixos-26.11.20260820.391b592 (202.6MB)"
time=2026-08-21T20:03:32.668Z level=ERROR msg="Failed to close zstd encoder" error="io: read/write on closed pipe"
time=2026-08-21T20:03:32.670Z level=INFO msg="Uploading 19 narinfos"
time=2026-08-21T20:03:34.428Z level=INFO msg="Upload complete. (6.853s)"