fix E0260 error index doctest

diff --git a/src/librustc_resolve/diagnostics.rs b/src/librustc_resolve/diagnostics.rs
index 8a29155d12d5b749303ce20e5b10842ad41c5105..c1e6b4f5a17d933ca2cea989efffa62ab0816a3a 100644 (file)
--- a/src/librustc_resolve/diagnostics.rs
+++ b/src/librustc_resolve/diagnostics.rs
@@ -325,6 +325,8 @@ fn main() {}
 extern crate core;
 
 struct core;
+
+fn main() {}
 ```
 
 There are two possible solutions: