Suggest items be borrowed in for i in items[x..]

[Nicholas-Baron]

Given the following code:
https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=5bb0aaa179979e54df877b3aafe9f507

use std::fmt::Display;

fn pretty_list(v: &Vec<impl Display>){
    print!("{}", v[0]);
    for item in v[1..] {
        print!(", {}", item);
    }
}

fn main(){
    let data = vec![0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
    pretty_list(&data);
}

The current output is:

error[E0277]: the size for values of type `[impl Display]` cannot be known at compilation time
 --> src/main.rs:5:17
  |
5 |     for item in v[1..] {
  |                 ^^^^^^ doesn't have a size known at compile-time
  |
  = help: the trait `Sized` is not implemented for `[impl Display]`
  = note: required because of the requirements on the impl of `IntoIterator` for `[impl Display]`
  = note: required by `into_iter`

error[E0277]: `[impl Display]` is not an iterator
 --> src/main.rs:5:17
  |
5 |     for item in v[1..] {
  |                 ^^^^^^ `[impl Display]` is not an iterator
  |
  = help: the trait `Iterator` is not implemented for `[impl Display]`
  = note: required because of the requirements on the impl of `IntoIterator` for `[impl Display]`
  = note: required by `into_iter`

error: aborting due to 2 previous errors

Ideally, the output should note that &v[1..] is a possible solution to these errors.

[Nicholas-Baron]

@rustbot label: +D-newcomer-roadblock.