these 4 derivations will be built:
  /nix/store/zl3hhlfz5ij2mjv8ns5i8q6knx6x33fq-system-units.drv
  /nix/store/l456kh0ci1girqrabw8xaa14gqsyh4da-etc.drv
  /nix/store/mpw8h00xr698vapsipqf2sqxhwk5ybki-activate.drv
  /nix/store/nhdxaq7sl6rvzvcn32qyv389m87cb968-nixos-system-tau-26.11.20260708.332783a.drv
building '/nix/store/zl3hhlfz5ij2mjv8ns5i8q6knx6x33fq-system-units.drv'
building '/nix/store/l456kh0ci1girqrabw8xaa14gqsyh4da-etc.drv'
building '/nix/store/mpw8h00xr698vapsipqf2sqxhwk5ybki-activate.drv'
building '/nix/store/nhdxaq7sl6rvzvcn32qyv389m87cb968-nixos-system-tau-26.11.20260708.332783a.drv'
nixos-system-tau-26.11.20260708.332783a> structuredAttrs is enabled

post-build step Push selected repositories to niks3 cache: ok
Skipping niks3 push for SBEE-Lab/infra