1 error[E0214]: parenthesized parameters may only be used with a trait
2 --> $DIR/issue-23589.rs:2:15
4 LL | let v: Vec(&str) = vec!['1', '2'];
5 | ^^^^^^ only traits may use parentheses
7 error: aborting due to previous error
9 For more information about this error, try `rustc --explain E0214`.