these 4 derivations will be built:
  /nix/store/r2v25fgnf7vkrzx67i01riw0mcc3cdsn-etc-nix-registry.json.drv
  /nix/store/gxbc916s9kmaqx5bvz3yxl2fnvdspjqa-etc.drv
  /nix/store/dj5chldrwzdzbqmx2fyb1jvv1n2nwb1n-activate.drv
  /nix/store/9fzka80w22wxxg0rbxhwlbmhgmssj7wx-nixos-system-taps-26.11.20260906.2466bb6.drv
building '/nix/store/r2v25fgnf7vkrzx67i01riw0mcc3cdsn-etc-nix-registry.json.drv'
building '/nix/store/gxbc916s9kmaqx5bvz3yxl2fnvdspjqa-etc.drv'
building '/nix/store/dj5chldrwzdzbqmx2fyb1jvv1n2nwb1n-activate.drv'
building '/nix/store/9fzka80w22wxxg0rbxhwlbmhgmssj7wx-nixos-system-taps-26.11.20260906.2466bb6.drv'
nixos-system-taps-26.11.20260906.2466bb6> structuredAttrs is enabled

post-build step Route build to niks3: ok
Pushing mulatta/dots to https://niks3.mulatta.io
time=2026-09-08T21:00:29.883+09:00 level=INFO msg="Uploading 4 paths to niks3.mulatta.io (713 already cached)"
time=2026-09-08T21:00:29.883+09:00 level=INFO msg="Uploading g3wzfh2rqn1qm9ihg622nkdzap3bkr25-etc-nix-registry.json (416B)"
time=2026-09-08T21:00:29.883+09:00 level=INFO msg="Uploading k93sfqivfxw360x8n8a7d3pnl4qpwqb7-nixos-system-taps-26.11.20260906.2466bb6 (248.6KB)"
time=2026-09-08T21:00:29.883+09:00 level=INFO msg="Uploading 4ldjb302nppaansh1nh2wkhi2j7hl38v-source (4.0MB)"
time=2026-09-08T21:00:29.883+09:00 level=INFO msg="Uploading in93k0k2ry61sc38rc47xlv1l314vg7f-etc (45.9KB)"
time=2026-09-08T21:00:31.472+09:00 level=INFO msg="Uploading 4 narinfos"
time=2026-09-08T21:00:32.347+09:00 level=INFO msg="Upload complete. (2.682s)"