Auto merge of #76502 - Dylan-DPC:rollup-2c4zz0t, r=Dylan-DPC

Rollup of 10 pull requests

Successful merges:

 - #76162 (Make duration_since documentation more clear)
 - #76355 (remove public visibility previously needed for rustfmt)
 - #76374 (Improve ayu doc source line number contrast)
 - #76379 (rustbuild: Remove `Mode::Codegen`)
 - #76389 (Fix HashMap visualizers in Visual Studio (Code))
 - #76396 (Fix typo in tracking issue template)
 - #76401 (Add help note to unconstrained const parameter)
 - #76402 (Update linker-plugin-lto.md to contain up to rust 1.46)
 - #76403 (Fix documentation for TyCtxt::all_impls)
 - #76498 (Update cargo)

Failed merges:

 - #76458 (Add drain_filter method to HashMap and HashSet)

r? `@ghost`

1 files changed, 4 insertions, 3 deletions

diff --git a/library/std/src/time.rs b/library/std/src/time.rs
index 575882eb459..18e38c6299b 100644
--- a/library/std/src/time.rs
+++ b/library/std/src/time.rs
@@ -460,12 +460,13 @@ impl SystemTime {
     ///
     /// # Examples
     ///
-    /// ```
+    /// ```no_run
     /// use std::time::SystemTime;
     ///
     /// let sys_time = SystemTime::now();
-    /// let difference = sys_time.duration_since(sys_time)
-    ///                          .expect("Clock may have gone backwards");
+    /// let new_sys_time = SystemTime::now();
+    /// let difference = new_sys_time.duration_since(sys_time)
+    ///     .expect("Clock may have gone backwards");
     /// println!("{:?}", difference);
     /// ```
     #[stable(feature = "time2", since = "1.8.0")]