these 4 derivations will be built:
  /nix/store/1fq2li57l05sziqbw6qisa6507m4h2ir-etc-nix-registry.json.drv
  /nix/store/z8x5j4rav3x8rxizrmc8yqkqjfhrzapn-etc.drv
  /nix/store/kh3ikdv8g4hnbgv2xsci4isp3l4n6wv6-activate.drv
  /nix/store/p9fsg93qg8qw8763q8yb14p8hvhd8qgn-nixos-system-cask-26.11.20260916.bb79322.drv
building '/nix/store/z8x5j4rav3x8rxizrmc8yqkqjfhrzapn-etc.drv'
building '/nix/store/kh3ikdv8g4hnbgv2xsci4isp3l4n6wv6-activate.drv'
activate> structuredAttrs is enabled
building '/nix/store/p9fsg93qg8qw8763q8yb14p8hvhd8qgn-nixos-system-cask-26.11.20260916.bb79322.drv'
nixos-system-cask-26.11.20260916.bb79322> structuredAttrs is enabled

post-build step Route build to niks3: ok
Pushing mulatta/dots to https://niks3.mulatta.io
time=2026-09-29T13:12:12.225+09:00 level=INFO msg="Uploading 2 paths to niks3.mulatta.io (1139 already cached)"
time=2026-09-29T13:12:12.225+09:00 level=INFO msg="Uploading fk7ck3zx1yj0v557nmv8imvzciyr4bym-nixos-system-cask-26.11.20260916.bb79322 (248.7KB)"
time=2026-09-29T13:12:12.225+09:00 level=INFO msg="Uploading 80cjf15rxcnihilasyb0724skz4rli1z-etc (106.1KB)"
time=2026-09-29T13:12:12.762+09:00 level=INFO msg="Uploading 2 narinfos"
time=2026-09-29T13:12:13.109+09:00 level=INFO msg="Upload complete. (1.172s)"