Rollup merge of #128307 - ojeda:unescaped_backticks, r=GuillaumeGomez

Clean and enable `rustdoc::unescaped_backticks` for `core/alloc/std/test/proc_macro`

I am not sure if the lint is supposed to be "ready enough" (since it is `allow` by default), but it does catch a couple issues in `core` (`alloc`, `std`, `test` and `proc_macro` are already clean), so I propose making it `warn` in all the crates rendered in the website.

Cc: `@GuillaumeGomez`

8 files changed, 9 insertions, 4 deletions

diff --git a/library/alloc/src/lib.rs b/library/alloc/src/lib.rs
index 3b039786eb5..6c585946050 100644
--- a/library/alloc/src/lib.rs
+++ b/library/alloc/src/lib.rs
@@ -86,6 +86,7 @@
 #![warn(multiple_supertrait_upcastable)]
 #![allow(internal_features)]
 #![allow(rustdoc::redundant_explicit_links)]
+#![warn(rustdoc::unescaped_backticks)]
 #![deny(ffi_unwind_calls)]
 //
 // Library features:
diff --git a/library/core/src/lib.rs b/library/core/src/lib.rs
index e8f08db9416..a3eca34a35c 100644
--- a/library/core/src/lib.rs
+++ b/library/core/src/lib.rs
@@ -103,6 +103,7 @@
 #![deny(ffi_unwind_calls)]
 // Do not check link redundancy on bootstraping phase
 #![allow(rustdoc::redundant_explicit_links)]
+#![warn(rustdoc::unescaped_backticks)]
 //
 // Library features:
 // tidy-alphabetical-start
diff --git a/library/core/src/ops/deref.rs b/library/core/src/ops/deref.rs
index 9849410d484..f0d2c761ef3 100644
--- a/library/core/src/ops/deref.rs
+++ b/library/core/src/ops/deref.rs
@@ -282,7 +282,7 @@ impl<T: ?Sized> DerefMut for &mut T {
 /// FIXME(deref_patterns): The precise semantics are undecided; the rough idea is that
 /// successive calls to `deref`/`deref_mut` without intermediate mutation should be
 /// idempotent, in the sense that they return the same value as far as pattern-matching
-/// is concerned. Calls to `deref`/`deref_mut`` must leave the pointer itself likewise
+/// is concerned. Calls to `deref`/`deref_mut` must leave the pointer itself likewise
 /// unchanged.
 #[unstable(feature = "deref_pure_trait", issue = "87121")]
 #[lang = "deref_pure"]
diff --git a/library/core/src/ptr/mod.rs b/library/core/src/ptr/mod.rs
index 9921f5d70c0..25d8f4a0adb 100644
--- a/library/core/src/ptr/mod.rs
+++ b/library/core/src/ptr/mod.rs
@@ -780,7 +780,7 @@ where
 ///
 /// The caller must also ensure that the memory the pointer (non-transitively) points to is never
 /// written to (except inside an `UnsafeCell`) using this pointer or any pointer derived from it. If
-/// you need to mutate the pointee, use [`from_mut`]`. Specifically, to turn a mutable reference `m:
+/// you need to mutate the pointee, use [`from_mut`]. Specifically, to turn a mutable reference `m:
 /// &mut T` into `*const T`, prefer `from_mut(m).cast_const()` to obtain a pointer that can later be
 /// used for mutation.
 ///
diff --git a/library/core/src/slice/mod.rs b/library/core/src/slice/mod.rs
index 64edaa2f034..0b0a416ea24 100644
--- a/library/core/src/slice/mod.rs
+++ b/library/core/src/slice/mod.rs
@@ -3435,8 +3435,8 @@ impl<T> [T] {
     /// elements of the slice move to the end while the last `k` elements move
     /// to the front.
     ///
-    /// After calling `rotate_right`, the element previously at index `self.len()
-    /// - k` will become the first element in the slice.
+    /// After calling `rotate_right`, the element previously at index
+    /// `self.len() - k` will become the first element in the slice.
     ///
     /// # Panics
     ///
diff --git a/library/proc_macro/src/lib.rs b/library/proc_macro/src/lib.rs
index 06db4837adf..c271ac18706 100644
--- a/library/proc_macro/src/lib.rs
+++ b/library/proc_macro/src/lib.rs
@@ -37,6 +37,7 @@
 #![recursion_limit = "256"]
 #![allow(internal_features)]
 #![deny(ffi_unwind_calls)]
+#![warn(rustdoc::unescaped_backticks)]
 
 #[unstable(feature = "proc_macro_internals", issue = "27812")]
 #[doc(hidden)]
diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs
index 6dc74728dfd..ee6f5a6f3c0 100644
--- a/library/std/src/lib.rs
+++ b/library/std/src/lib.rs
@@ -254,6 +254,7 @@
 #![deny(fuzzy_provenance_casts)]
 #![deny(unsafe_op_in_unsafe_fn)]
 #![allow(rustdoc::redundant_explicit_links)]
+#![warn(rustdoc::unescaped_backticks)]
 // Ensure that std can be linked against panic_abort despite compiled with `-C panic=unwind`
 #![deny(ffi_unwind_calls)]
 // std may use features in a platform-specific way
diff --git a/library/test/src/lib.rs b/library/test/src/lib.rs
index 516e3f1300e..632f8d161af 100644
--- a/library/test/src/lib.rs
+++ b/library/test/src/lib.rs
@@ -24,6 +24,7 @@
 #![feature(panic_can_unwind)]
 #![feature(test)]
 #![allow(internal_features)]
+#![warn(rustdoc::unescaped_backticks)]
 
 pub use cli::TestOpts;