2 files changed, 2 insertions, 0 deletions
diff --git a/src/liballoc/slice.rs b/src/liballoc/slice.rs
index 28caccbc87f..2c7bdc427ea 100644
--- a/src/liballoc/slice.rs
+++ b/src/liballoc/slice.rs
@@ -1624,6 +1624,7 @@ impl<T> [T] {
     /// let x = s.to_vec();
     /// // Here, `s` and `x` can be modified independently.
     /// ```
+    #[rustc_conversion_suggestion]
     #[stable(feature = "rust1", since = "1.0.0")]
     #[inline]
     pub fn to_vec(&self) -> Vec<T>
diff --git a/src/liballoc/string.rs b/src/liballoc/string.rs
index ca493ab27e3..8d99d0bc8f4 100644
--- a/src/liballoc/string.rs
+++ b/src/liballoc/string.rs
@@ -2034,6 +2034,7 @@ pub trait ToString {
     ///
     /// assert_eq!(five, i.to_string());
     /// ```
+    #[rustc_conversion_suggestion]
     #[stable(feature = "rust1", since = "1.0.0")]
     fn to_string(&self) -> String;
 }