diff --git a/src/subtyping.md b/src/subtyping.md
index 79b64083..80e329ed 100644
--- a/src/subtyping.md
+++ b/src/subtyping.md
@@ -188,6 +188,10 @@ some sense "fundamental". All the others can be understood by analogy to the oth
* `*const T` follows the logic of `&T`
* `*mut T` follows the logic of `&mut T` (or `UnsafeCell<T>`)
+For more types, see the ["Variance" section][variance-table] on the reference.
+
+[variance-table]: ../reference/subtyping.html#variance
+
> NOTE: the *only* source of contravariance in the language is the arguments to
> a function, which is why it really doesn't come up much in practice. Invoking
> contravariance involves higher-order programming with function pointers that
@@ -265,7 +269,7 @@ enough into the place expecting something long-lived.
Here it is:
-```rust,ignore
+```rust,compile_fail
fn evil_feeder<T>(input: &mut T, val: T) {
*input = val;
}
@@ -285,15 +289,16 @@ And what do we get when we run this?
```text
error[E0597]: `spike` does not live long enough
- --> src/main.rs:9:32
+ --> src/main.rs:9:31
|
-9 | let spike_str: &str = &spike;
- | ^^^^^ borrowed value does not live long enough
-10 | evil_feeder(&mut mr_snuggles, spike_str);
+6 | let mut mr_snuggles: &'static str = "meow! :3"; // mr. snuggles forever!!
+ | ------------ type annotation requires that `spike` is borrowed for `'static`
+...
+9 | let spike_str: &str = &spike; // Only lives for the block
+ | ^^^^^^ borrowed value does not live long enough
+10 | evil_feeder(&mut mr_snuggles, spike_str); // EVIL!
11 | }
- | - borrowed value only lives until here
- |
- = note: borrowed value must be valid for the static lifetime...
+ | - `spike` dropped here while still borrowed
```
Good, it doesn't compile! Let's break down what's happening here in detail.