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$ cargo build
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Compiling minigrep v0.1.0 (file:///projects/minigrep)
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error[E0106]: missing lifetime specifier
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--> src/lib.rs:28:51
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28 | pub fn search(query: &str, contents: &str) -> Vec<&str> {
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| ---- ---- ^ expected named lifetime parameter
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= help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from `query` or `contents`
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help: consider introducing a named lifetime parameter
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28 | pub fn search<'a>(query: &'a str, contents: &'a str) -> Vec<&'a str> {
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| ++++ ++ ++ ++
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For more information about this error, try `rustc --explain E0106`.
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error: could not compile `minigrep` (lib) due to 1 previous error
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