error:
       … while evaluating the attribute 'default.x86_64-linux'
         at /var/lib/nixbot/worktrees/18-426ce6398531-daf70d73/flake.nix:40:9:
           39|         # nix build .
           40|         packages.default = packages.foreign.override (attrs: {
             |         ^
           41|           # Prefer nix friendly settings.

       error: attribute 'x86_64-linux' missing
       at /var/lib/nixbot/worktrees/18-426ce6398531-daf70d73/flake.nix:53:26:
           52|
           53|         checks.default = packages.default.x86_64-linux;
             |                          ^
           54|