these 4 derivations will be built:
  /nix/store/g29dqa8nlh0qszq0f5gczqw41gsx1jc2-etc-nix-registry.json.drv
  /nix/store/375nxyr4ii0kscldlk4cbc124wjgnrwv-etc.drv
  /nix/store/cwfh8qjlxi3h05v8k8ib8vb9asxf0hxh-activate.drv
  /nix/store/dq5fxd2l2i03imsfi7hdwlhpa9jrni2m-nixos-system-cask-26.11.20260916.bb79322.drv
building '/nix/store/375nxyr4ii0kscldlk4cbc124wjgnrwv-etc.drv'
building '/nix/store/cwfh8qjlxi3h05v8k8ib8vb9asxf0hxh-activate.drv'
activate> structuredAttrs is enabled
building '/nix/store/dq5fxd2l2i03imsfi7hdwlhpa9jrni2m-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=2026-10-01T07:50:49.801+09:00 level=INFO msg="Uploading 2 paths to niks3.mulatta.io (1036 already cached)"
time=2026-10-01T07:50:49.801+09:00 level=INFO msg="Uploading yk1pbah324fmdvwd57wyliv3xncdirmn-etc (105.7KB)"
time=2026-10-01T07:50:49.801+09:00 level=INFO msg="Uploading 4axwds0bvlnfa2xgdysgciln41jh2x87-nixos-system-cask-26.11.20260916.bb79322 (248.7KB)"
time=2026-10-01T07:50:50.217+09:00 level=INFO msg="Uploading 2 narinfos"
time=2026-10-01T07:50:50.722+09:00 level=INFO msg="Upload complete. (1.181s)"