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-rw-r--r--src/librustc_typeck/diagnostics.rs6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/librustc_typeck/diagnostics.rs b/src/librustc_typeck/diagnostics.rs
index 2bf1c0bb4d3..526a895592b 100644
--- a/src/librustc_typeck/diagnostics.rs
+++ b/src/librustc_typeck/diagnostics.rs
@@ -1721,6 +1721,12 @@ extern {
 E0131: r##"
 It is not possible to define `main` with type parameters, or even with function
 parameters. When `main` is present, it must take no arguments and return `()`.
+Erroneous code example:
+
+```
+fn main<T>() { // error: main function is not allowed to have type parameters
+}
+```
 "##,
 
 E0132: r##"