error: redundant argument
  --> $DIR/issue-105225-named-args.rs:5:21
   |
LL |     println!("{x}", x, x = y);
   |                     ^
   |
note: the formatting specifier is referencing the binding already
  --> $DIR/issue-105225-named-args.rs:5:16
   |
LL |     println!("{x}", x, x = y);
   |                ^

error: duplicate argument named `x`
  --> $DIR/issue-105225-named-args.rs:8:28
   |
LL |     println!("{x}", x = y, x = y);
   |                     -      ^ duplicate argument
   |                     |
   |                     previously here

error: aborting due to 2 previous errors