```
"##,
+E0014: r##"
+Constants can only be initialized by a constant value or, in a future
+version of Rust, a call to a const function. This error indicates the use
+of a path (like a::b, or x) denoting something other than one of these
+allowed items. Example:
+
+```
+const FOO: i32 = { let x = 0; x }; // 'x' isn't a constant nor a function!
+```
+
+To avoid it, you have to replace the non-constant value:
+
+```
+const FOO: i32 = { const X : i32 = 0; X };
+// or even:
+const FOO: i32 = { 0 }; // but brackets are useless here
+```
+"##,
+
E0015: r##"
The only functions that can be called in static or constant expressions are
`const` functions. Rust currently does not support more general compile-time
register_diagnostics! {
- E0014,
E0016,
E0017,
E0019,