Barbecue Carrots with Yogurt and Pecans

Name: Barbecue Carrots with Yogurt and Pecans
Ingredients: 3 tablespoons dark brown sugar; 1 tablespoon smoked paprika; 2 teaspoons ground cumin; 1 teaspoon celery salt; 1 teaspoon granulated garlic; 1 teaspoon onion powder; ¼ teaspoon cayenne pepper; 1 tablespoon kosher salt, plus more; 1 teaspoon freshly ground black pepper, plus more; 1 pound small carrots, scrubbed, halved lengthwise; 3 tablespoons olive oil; ⅓ cup pecans; ½ cup plain Greek yogurt; 2 tablespoons buttermilk; 1 tablespoon chopped dill; 2 teaspoons fresh lemon juice, plus more for serving