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error[E0507]: cannot move out of index of `Vec<String>`
--> $DIR/issue-40402-1.rs:9:13
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LL | let e = f.v[0];
| ^^^^^^ move occurs because value has type `String`, which does not implement the `Copy` trait
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help: consider borrowing here
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LL | let e = &f.v[0];
| +
help: consider cloning the value if the performance cost is acceptable
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LL | let e = f.v[0].clone();
| ++++++++
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0507`.
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