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error[E0597]: `prefix` does not live long enough
--> $DIR/does-not-live-long-enough.rs:6:51
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LL | fn started_with<'a>(&'a self, prefix: &'a str) -> impl Iterator<Item=&'a str> {
| -- lifetime `'a` defined here --------------------------- opaque type requires that `prefix` is borrowed for `'a`
LL | self.data.iter().filter(|s| s.starts_with(prefix)).map(|s| s.as_ref())
| --- ^^^^^^ borrowed value does not live long enough
| |
| value captured here
LL |
LL | }
| - `prefix` dropped here while still borrowed
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help: you can add a bound to the opaque type to make it last less than `'static` and match `'a`
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LL | fn started_with<'a>(&'a self, prefix: &'a str) -> impl Iterator<Item=&'a str> + 'a {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to previous error
For more information about this error, try `rustc --explain E0597`.
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