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error[E0373]: closure may outlive the current function, but it borrows `prefix`, which is owned by the current function
--> $DIR/does-not-live-long-enough.rs:6:33
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LL | fn started_with<'a>(&'a self, prefix: &'a str) -> impl Iterator<Item=&'a str> {
| -- lifetime `'a` defined here
LL | self.data.iter().filter(|s| s.starts_with(prefix)).map(|s| s.as_ref())
| ^^^ ------ `prefix` is borrowed here
| |
| may outlive borrowed value `prefix`
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note: function requires argument type to outlive `'a`
--> $DIR/does-not-live-long-enough.rs:6:9
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LL | self.data.iter().filter(|s| s.starts_with(prefix)).map(|s| s.as_ref())
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: to force the closure to take ownership of `prefix` (and any other referenced variables), use the `move` keyword
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LL | self.data.iter().filter(move |s| s.starts_with(prefix)).map(|s| s.as_ref())
| ++++
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0373`.
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