rust/src/etc/natvis/liballoc.natvis

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  <Type Name="alloc::string::String">
    <DisplayString>{(char*)vec.buf.inner.ptr.pointer.pointer,[vec.len]s8}</DisplayString>
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    <DisplayString Optional="true">{ptr.pointer->value}</DisplayString>
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  <!-- alloc::rc::Rc<[T]> -->
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        <Size>ptr.pointer.length</Size>
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  <!-- alloc::rc::Weak<T> -->
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      <Item Name="[Weak reference count]" Optional="true">ptr.pointer.pointer->weak</Item>
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  <!-- alloc::rc::Weak<[T]> -->
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  <!-- alloc::sync::Arc<T> -->
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  <!-- alloc::sync::Weak<T> -->
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    <DisplayString Optional="true">{ptr.pointer->data}</DisplayString>
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