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-### What it does
-Checks for `.err().expect()` calls on the `Result` type.
-
-### Why is this bad?
-`.expect_err()` can be called directly to avoid the extra type conversion from `err()`.
-
-### Example
-```
-let x: Result<u32, &str> = Ok(10);
-x.err().expect("Testing err().expect()");
-```
-Use instead:
-```
-let x: Result<u32, &str> = Ok(10);
-x.expect_err("Testing expect_err");
-``` \ No newline at end of file