1 error: `ref` directly on a function argument is ignored. Consider using a reference type instead.
2 --> toplevel_ref_arg.rs:7:15
4 7 | fn the_answer(ref mut x: u8) {
7 = note: `-D toplevel-ref-arg` implied by `-D warnings`
9 error: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
10 --> toplevel_ref_arg.rs:18:7
13 | ----^^^^^----- help: try `let x = &1;`
15 = note: `-D toplevel-ref-arg` implied by `-D warnings`
17 error: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
18 --> toplevel_ref_arg.rs:20:7
20 20 | let ref y: (&_, u8) = (&1, 2);
21 | ----^^^^^--------------------- help: try `let y: &(&_, u8) = &(&1, 2);`
23 = note: `-D toplevel-ref-arg` implied by `-D warnings`
25 error: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
26 --> toplevel_ref_arg.rs:22:7
28 22 | let ref z = 1 + 2;
29 | ----^^^^^--------- help: try `let z = &(1 + 2);`
31 = note: `-D toplevel-ref-arg` implied by `-D warnings`
33 error: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
34 --> toplevel_ref_arg.rs:24:7
36 24 | let ref mut z = 1 + 2;
37 | ----^^^^^^^^^--------- help: try `let z = &mut (1 + 2);`
39 = note: `-D toplevel-ref-arg` implied by `-D warnings`
41 error: aborting due to previous error(s)
44 To learn more, run the command again with --verbose.