--- /dev/null
+error: using `to_string` in `fmt::Display` implementation might lead to infinite recursion
+ --> $DIR/to_string_in_display.rs:25:25
+ |
+LL | write!(f, "{}", self.to_string())
+ | ^^^^^^^^^^^^^^^^
+ |
+ = note: `-D clippy::to-string-in-display` implied by `-D warnings`
+
+error: aborting due to previous error
+