Auto merge of rust-lang#74518 - Manishearth:rollup-jfmnh1r, r=Manishearth

Rollup of 4 pull requests

Successful merges:

 - rust-lang#74333 (Deny unsafe operations in unsafe functions in libstd/alloc.rs)
 - rust-lang#74356 (Remove combine function)
 - rust-lang#74419 (Add a thumbv4t-none-eabi target)
 - rust-lang#74485 (More intra-doc links, add explicit exception list to linkchecker)

Failed merges:

 - rust-lang#74486 (Improve Read::read_exact documentation)

r? @ghost

Author: bors

src/liballoc/collections/btree/map.rs

@@ -47,9 +47,9 @@ use UnderflowResult::*;
 /// any other key, as determined by the [`Ord`] trait, changes while it is in the map. This is
 /// normally only possible through [`Cell`], [`RefCell`], global state, I/O, or unsafe code.
 ///
-/// [`Ord`]: ../../std/cmp/trait.Ord.html
-/// [`Cell`]: ../../std/cell/struct.Cell.html
-/// [`RefCell`]: ../../std/cell/struct.RefCell.html
+/// [`Ord`]: core::cmp::Ord
+/// [`Cell`]: core::cell::Cell
+/// [`RefCell`]: core::cell::RefCell
 ///
 /// # Examples
 ///
@@ -256,8 +256,7 @@ where
 /// This `struct` is created by the [`iter`] method on [`BTreeMap`]. See its
 /// documentation for more.
 ///
-/// [`iter`]: struct.BTreeMap.html#method.iter
-/// [`BTreeMap`]: struct.BTreeMap.html
+/// [`iter`]: BTreeMap::iter
 #[stable(feature = "rust1", since = "1.0.0")]
 pub struct Iter<'a, K: 'a, V: 'a> {
     range: Range<'a, K, V>,
@@ -276,8 +275,7 @@ impl<K: fmt::Debug, V: fmt::Debug> fmt::Debug for Iter<'_, K, V> {
 /// This `struct` is created by the [`iter_mut`] method on [`BTreeMap`]. See its
 /// documentation for more.
 ///
-/// [`iter_mut`]: struct.BTreeMap.html#method.iter_mut
-/// [`BTreeMap`]: struct.BTreeMap.html
+/// [`iter_mut`]: BTreeMap::iter_mut
 #[stable(feature = "rust1", since = "1.0.0")]
 #[derive(Debug)]
 pub struct IterMut<'a, K: 'a, V: 'a> {
@@ -290,8 +288,7 @@ pub struct IterMut<'a, K: 'a, V: 'a> {
 /// This `struct` is created by the [`into_iter`] method on [`BTreeMap`]
 /// (provided by the `IntoIterator` trait). See its documentation for more.
 ///
-/// [`into_iter`]: struct.BTreeMap.html#method.into_iter
-/// [`BTreeMap`]: struct.BTreeMap.html
+/// [`into_iter`]: IntoIterator::into_iter
 #[stable(feature = "rust1", since = "1.0.0")]
 pub struct IntoIter<K, V> {
     front: Option<Handle<NodeRef<marker::Owned, K, V, marker::Leaf>, marker::Edge>>,
@@ -315,8 +312,7 @@ impl<K: fmt::Debug, V: fmt::Debug> fmt::Debug for IntoIter<K, V> {
 /// This `struct` is created by the [`keys`] method on [`BTreeMap`]. See its
 /// documentation for more.
 ///
-/// [`keys`]: struct.BTreeMap.html#method.keys
-/// [`BTreeMap`]: struct.BTreeMap.html
+/// [`keys`]: BTreeMap::keys
 #[stable(feature = "rust1", since = "1.0.0")]
 pub struct Keys<'a, K: 'a, V: 'a> {
     inner: Iter<'a, K, V>,
@@ -334,8 +330,7 @@ impl<K: fmt::Debug, V> fmt::Debug for Keys<'_, K, V> {
 /// This `struct` is created by the [`values`] method on [`BTreeMap`]. See its
 /// documentation for more.
 ///
-/// [`values`]: struct.BTreeMap.html#method.values
-/// [`BTreeMap`]: struct.BTreeMap.html
+/// [`values`]: BTreeMap::values
 #[stable(feature = "rust1", since = "1.0.0")]
 pub struct Values<'a, K: 'a, V: 'a> {
     inner: Iter<'a, K, V>,
@@ -353,8 +348,7 @@ impl<K, V: fmt::Debug> fmt::Debug for Values<'_, K, V> {
 /// This `struct` is created by the [`values_mut`] method on [`BTreeMap`]. See its
 /// documentation for more.
 ///
-/// [`values_mut`]: struct.BTreeMap.html#method.values_mut
-/// [`BTreeMap`]: struct.BTreeMap.html
+/// [`values_mut`]: BTreeMap::values_mut
 #[stable(feature = "map_values_mut", since = "1.10.0")]
 #[derive(Debug)]
 pub struct ValuesMut<'a, K: 'a, V: 'a> {
@@ -366,8 +360,7 @@ pub struct ValuesMut<'a, K: 'a, V: 'a> {
 /// This `struct` is created by the [`range`] method on [`BTreeMap`]. See its
 /// documentation for more.
 ///
-/// [`range`]: struct.BTreeMap.html#method.range
-/// [`BTreeMap`]: struct.BTreeMap.html
+/// [`range`]: BTreeMap::range
 #[stable(feature = "btree_range", since = "1.17.0")]
 pub struct Range<'a, K: 'a, V: 'a> {
     front: Option<Handle<NodeRef<marker::Immut<'a>, K, V, marker::Leaf>, marker::Edge>>,
@@ -386,8 +379,7 @@ impl<K: fmt::Debug, V: fmt::Debug> fmt::Debug for Range<'_, K, V> {
 /// This `struct` is created by the [`range_mut`] method on [`BTreeMap`]. See its
 /// documentation for more.
 ///
-/// [`range_mut`]: struct.BTreeMap.html#method.range_mut
-/// [`BTreeMap`]: struct.BTreeMap.html
+/// [`range_mut`]: BTreeMap::range_mut
 #[stable(feature = "btree_range", since = "1.17.0")]
 pub struct RangeMut<'a, K: 'a, V: 'a> {
     front: Option<Handle<NodeRef<marker::Mut<'a>, K, V, marker::Leaf>, marker::Edge>>,
@@ -412,8 +404,7 @@ impl<K: fmt::Debug, V: fmt::Debug> fmt::Debug for RangeMut<'_, K, V> {
 ///
 /// This `enum` is constructed from the [`entry`] method on [`BTreeMap`].
 ///
-/// [`BTreeMap`]: struct.BTreeMap.html
-/// [`entry`]: struct.BTreeMap.html#method.entry
+/// [`entry`]: BTreeMap::entry
 #[stable(feature = "rust1", since = "1.0.0")]
 pub enum Entry<'a, K: 'a, V: 'a> {
     /// A vacant entry.

src/liballoc/collections/btree/set.rs

@@ -22,9 +22,9 @@ use super::Recover;
 /// to any other item, as determined by the [`Ord`] trait, changes while it is in the set. This is
 /// normally only possible through [`Cell`], [`RefCell`], global state, I/O, or unsafe code.
 ///
-/// [`Ord`]: ../../std/cmp/trait.Ord.html
-/// [`Cell`]: ../../std/cell/struct.Cell.html
-/// [`RefCell`]: ../../std/cell/struct.RefCell.html
+/// [`Ord`]: core::cmp::Ord
+/// [`Cell`]: core::cell::Cell
+/// [`RefCell`]: core::cell::RefCell
 ///
 /// # Examples
 ///

src/liballoc/str.rs

@@ -240,8 +240,6 @@ impl str {
     /// While doing so, it attempts to find matches of a pattern. If it finds any, it
     /// replaces them with the replacement string slice.
     ///
-    /// [`String`]: string/struct.String.html
-    ///
     /// # Examples
     ///
     /// Basic usage:
@@ -280,8 +278,6 @@ impl str {
     /// While doing so, it attempts to find matches of a pattern. If it finds any, it
     /// replaces them with the replacement string slice at most `count` times.
     ///
-    /// [`String`]: string/struct.String.html
-    ///
     /// # Examples
     ///
     /// Basic usage:
@@ -324,8 +320,6 @@ impl str {
     /// the case, this function returns a [`String`] instead of modifying the
     /// parameter in-place.
     ///
-    /// [`String`]: string/struct.String.html
-    ///
     /// # Examples
     ///
     /// Basic usage:
@@ -411,8 +405,6 @@ impl str {
     /// the case, this function returns a [`String`] instead of modifying the
     /// parameter in-place.
     ///
-    /// [`String`]: string/struct.String.html
-    ///
     /// # Examples
     ///
     /// Basic usage:
@@ -459,8 +451,7 @@ impl str {
 
     /// Converts a [`Box<str>`] into a [`String`] without copying or allocating.
     ///
-    /// [`String`]: string/struct.String.html
-    /// [`Box<str>`]: boxed/struct.Box.html
+    /// [`Box<str>`]: Box
     ///
     /// # Examples
     ///
@@ -485,8 +476,6 @@ impl str {
     ///
     /// This function will panic if the capacity would overflow.
     ///
-    /// [`String`]: string/struct.String.html
-    ///
     /// # Examples
     ///
     /// Basic usage:
@@ -525,7 +514,7 @@ impl str {
     /// assert_eq!("GRüßE, JüRGEN ❤", s.to_ascii_uppercase());
     /// ```
     ///
-    /// [`make_ascii_uppercase`]: #method.make_ascii_uppercase
+    /// [`make_ascii_uppercase`]: str::make_ascii_uppercase
     /// [`to_uppercase`]: #method.to_uppercase
     #[stable(feature = "ascii_methods_on_intrinsics", since = "1.23.0")]
     #[inline]
@@ -555,7 +544,7 @@ impl str {
     /// assert_eq!("grüße, jürgen ❤", s.to_ascii_lowercase());
     /// ```
     ///
-    /// [`make_ascii_lowercase`]: #method.make_ascii_lowercase
+    /// [`make_ascii_lowercase`]: str::make_ascii_lowercase
     /// [`to_lowercase`]: #method.to_lowercase
     #[stable(feature = "ascii_methods_on_intrinsics", since = "1.23.0")]
     #[inline]