Auto merge of #43051 - Mark-Simulacrum:rollup, r=Mark-Simulacrum

Rollup of 8 pull requests

- Successful merges: #42227, #42836, #42975, #42994, #43041, #43042, #43043, #43045
- Failed merges:

1 files changed, 4 insertions, 4 deletions

diff --git a/src/liballoc/string.rs b/src/liballoc/string.rs
index 79d1ccf637d..622cc68964b 100644
--- a/src/liballoc/string.rs
+++ b/src/liballoc/string.rs
@@ -2008,10 +2008,10 @@ impl From<Box<str>> for String {
     }
 }
 
-#[stable(feature = "box_from_str", since = "1.18.0")]
-impl Into<Box<str>> for String {
-    fn into(self) -> Box<str> {
-        self.into_boxed_str()
+#[stable(feature = "box_from_str", since = "1.20.0")]
+impl From<String> for Box<str> {
+    fn from(s: String) -> Box<str> {
+        s.into_boxed_str()
     }
 }