these 3 derivations will be built:
  /nix/store/h4rzjajn2w69qh8s1f7kxvcr889ph420-etc.drv
  /nix/store/ibq7g1s6lrs45fxa7a3k2pxwgw4af4ba-activate.drv
  /nix/store/fh7chc8qxn43mm4q1v8i0cbx5ppjmibc-nixos-system-tau-26.11.20260708.332783a.drv
building '/nix/store/h4rzjajn2w69qh8s1f7kxvcr889ph420-etc.drv'
building '/nix/store/ibq7g1s6lrs45fxa7a3k2pxwgw4af4ba-activate.drv'
building '/nix/store/fh7chc8qxn43mm4q1v8i0cbx5ppjmibc-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