Rollup merge of #60511 - taiki-e:libstd-intra-doc, r=Dylan-DPC

Fix intra-doc link resolution failure on re-exporting libstd

Currently, re-exporting libstd items as below will [occur a lot of failures](https://gist.github.com/taiki-e/e33e0e8631ef47f65a74a3b69f456366).
```rust
pub use std::*;
```

Until the underlying issue (#56922) fixed, we can fix that so they don't propagate to downstream crates.

Related: https://github.com/rust-lang/rust/pull/56941 (That PR fixed failures that occur when re-exporting from libcore to libstd.)

r? @QuietMisdreavus

2 files changed, 4 insertions, 0 deletions

diff --git a/src/libstd/sync/mutex.rs b/src/libstd/sync/mutex.rs
index 11ac34fcb24..87c2318a937 100644
--- a/src/libstd/sync/mutex.rs
+++ b/src/libstd/sync/mutex.rs
@@ -376,6 +376,8 @@ unsafe impl<#[may_dangle] T: ?Sized> Drop for Mutex<T> {
 impl<T> From<T> for Mutex<T> {
     /// Creates a new mutex in an unlocked state ready for use.
     /// This is equivalent to [`Mutex::new`].
+    ///
+    /// [`Mutex::new`]: ../../std/sync/struct.Mutex.html#method.new
     fn from(t: T) -> Self {
         Mutex::new(t)
     }
diff --git a/src/libstd/sync/rwlock.rs b/src/libstd/sync/rwlock.rs
index 1299a744095..b1b56f321fc 100644
--- a/src/libstd/sync/rwlock.rs
+++ b/src/libstd/sync/rwlock.rs
@@ -453,6 +453,8 @@ impl<T: Default> Default for RwLock<T> {
 impl<T> From<T> for RwLock<T> {
     /// Creates a new instance of an `RwLock<T>` which is unlocked.
     /// This is equivalent to [`RwLock::new`].
+    ///
+    /// [`RwLock::new`]: ../../std/sync/struct.RwLock.html#method.new
     fn from(t: T) -> Self {
         RwLock::new(t)
     }