1error:2 … while evaluating the attribute 'default.x86_64-linux'3 at /var/lib/nixbot/worktrees/18-426ce6398531-daf70d73/flake.nix:40:9:4 39| # nix build .5 40| packages.default = packages.foreign.override (attrs: {6 | ^7 41| # Prefer nix friendly settings.89 error: attribute 'x86_64-linux' missing10 at /var/lib/nixbot/worktrees/18-426ce6398531-daf70d73/flake.nix:53:26:11 52|12 53| checks.default = packages.default.x86_64-linux;13 | ^14 54|