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fn main() {
let mut v = vec!["hello", "this", "is", "a", "test"];
let v2 = Vec::new();
v.into_iter().map(|s|s.to_owned()).collect::<Vec<_>>();
let mut a = String::new();
for i in v {
a = *i.to_string();
//~^ ERROR mismatched types
//~| NOTE expected struct `String`, found `str`
v2.push(a);
}
}
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