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error[E0515]: cannot return value referencing function parameter
--> $DIR/issue-26619.rs:5:76
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LL | for s in vec!["1|2".to_string()].into_iter().filter_map(|ref line| self.make_entry(line)) {
| -------- ^^^^^^^^^^^^^^^^^^^^^ returns a value referencing data owned by the current function
| |
| function parameter borrowed here
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0515`.
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