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### What it does
Checks for transmutes between collections whose
types have different ABI, size or alignment.
### Why is this bad?
This is undefined behavior.
### Known problems
Currently, we cannot know whether a type is a
collection, so we just lint the ones that come with `std`.
### Example
```
// different size, therefore likely out-of-bounds memory access
// You absolutely do not want this in your code!
unsafe {
std::mem::transmute::<_, Vec<u32>>(vec![2_u16])
};
```
You must always iterate, map and collect the values:
```
vec![2_u16].into_iter().map(u32::from).collect::<Vec<_>>();
```
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