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### What it does
Detects `if`-then-`panic!` that can be replaced with `assert!`.
### Why is this bad?
`assert!` is simpler than `if`-then-`panic!`.
### Example
```
let sad_people: Vec<&str> = vec![];
if !sad_people.is_empty() {
panic!("there are sad people: {:?}", sad_people);
}
```
Use instead:
```
let sad_people: Vec<&str> = vec![];
assert!(sad_people.is_empty(), "there are sad people: {:?}", sad_people);
```
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