error fixes

config/nvim/lua/plugins/extras/lang/rust-extended.lua

@@ -67,6 +67,9 @@ return {
     opts = function(_, opts)
       opts.formatters_by_ft.toml = opts.formatters_by_ft.toml or {}
       table.insert(opts.formatters_by_ft.toml, "taplo")
+
+      opts.formatters_by_ft.rust = opts.formatters_by_ft.rust or {}
+      table.insert(opts.formatters_by_ft.rust, "rustfmt")
       return opts
     end,
   },