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$ cargo build
Compiling minigrep v0.1.0 (file:///projects/minigrep)
error[E0106]: missing lifetime specifier
--> src/lib.rs:28:51
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28 | pub fn search(query: &str, contents: &str) -> Vec<&str> {
| ---- ---- ^ 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`
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> {
| ++++ ++ ++ ++
For more information about this error, try `rustc --explain E0106`.
error: could not compile `minigrep` due to previous error
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