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+### What it does
+Checks whether variables used within while loop condition
+can be (and are) mutated in the body.
+
+### Why is this bad?
+If the condition is unchanged, entering the body of the loop
+will lead to an infinite loop.
+
+### Known problems
+If the `while`-loop is in a closure, the check for mutation of the
+condition variables in the body can cause false negatives. For example when only `Upvar` `a` is
+in the condition and only `Upvar` `b` gets mutated in the body, the lint will not trigger.
+
+### Example
+```
+let i = 0;
+while i > 10 {
+    println!("let me loop forever!");
+}
+```
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