these 4 derivations will be built:
  /nix/store/nr131dci4khcq9xisfi2c8bi7aqi9jmk-etc-nix-registry.json.drv
  /nix/store/zfws1dzd1z4pmdmhk9dnbdqckzs2an2y-etc.drv
  /nix/store/9qv8sxl70qqwlp3n3rmj1zjsd755m5jl-activate.drv
  /nix/store/aj4165c2kx1h2gw764zbgb9aklp3bx2r-nixos-system-taps-26.11.20260916.bb79322.drv
building '/nix/store/nr131dci4khcq9xisfi2c8bi7aqi9jmk-etc-nix-registry.json.drv'
etc-nix-registry.json> structuredAttrs is enabled
building '/nix/store/zfws1dzd1z4pmdmhk9dnbdqckzs2an2y-etc.drv'
building '/nix/store/9qv8sxl70qqwlp3n3rmj1zjsd755m5jl-activate.drv'
activate> structuredAttrs is enabled
building '/nix/store/aj4165c2kx1h2gw764zbgb9aklp3bx2r-nixos-system-taps-26.11.20260916.bb79322.drv'
nixos-system-taps-26.11.20260916.bb79322> structuredAttrs is enabled

post-build step Route build to niks3: ok
Pushing mulatta/dots to https://niks3.mulatta.io
time=2026-10-01T20:03:56.090+09:00 level=INFO msg="Uploading 4 paths to niks3.mulatta.io (714 already cached)"
time=2026-10-01T20:03:56.090+09:00 level=INFO msg="Uploading 8cbfzdn8bvp0bbykdhrm1d5i0s3zyk9b-source (2.2MB)"
time=2026-10-01T20:03:56.090+09:00 level=INFO msg="Uploading vnlqcy6r0si7balr7y8dhz6nh9d6yvka-etc-nix-registry.json (416B)"
time=2026-10-01T20:03:56.090+09:00 level=INFO msg="Uploading h2i4fn0q5lcll1i11hvy5lpjlldsrwj7-etc (46.8KB)"
time=2026-10-01T20:03:56.090+09:00 level=INFO msg="Uploading q657ks4jg1sx1zy934x05bcf8jx65ric-nixos-system-taps-26.11.20260916.bb79322 (248.7KB)"
time=2026-10-01T20:03:56.553+09:00 level=INFO msg="Uploading 4 narinfos"
time=2026-10-01T20:03:56.960+09:00 level=INFO msg="Upload complete. (1.074s)"