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### What it does
Checks for calls of `unwrap[_err]()` that will always fail.
### Why is this bad?
If panicking is desired, an explicit `panic!()` should be used.
### Known problems
This lint only checks `if` conditions not assignments.
So something like `let x: Option<()> = None; x.unwrap();` will not be recognized.
### Example
```
if option.is_none() {
do_something_with(option.unwrap())
}
```
This code will always panic. The if condition should probably be inverted.
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