Rust 文字列のベクタ（可変配列）を全て連結する

ベクタ.concat();

fn main() {

    let v = vec![ "aaa", "bbb", "ccc" ];

    println!("{:?}", v.concat() );
    // "aaabbbccc"

}

fn main() {

    let v = vec![0; 0];

    println!("{:?}", v.concat() );
    // error[E0599]: the method `concat` exists for struct `Vec<{integer}>`, but its trait bounds were not satisfied

}