these 2 derivations will be built:
  /nix/store/pvp00mnvpd2hd07dv0dlgsl9n0cqyfdq-rustd-0-unstable-2026-10-21-vendor.drv
  /nix/store/72i9h232mhyyybms8gxgzjmxcnz04p53-rustd-0-unstable-2026-10-21.drv