Rollup of 6 pull requests

.mailmap

@@ -43,6 +43,7 @@ Brian Anderson <banderson@mozilla.com> <andersrb@gmail.com>
 Brian Anderson <banderson@mozilla.com> <banderson@mozilla.org>
 Brian Dawn <brian.t.dawn@gmail.com>
 Brian Leibig <brian@brianleibig.com> Brian Leibig <brian.leibig@gmail.com>
+Noah Lev <camelidcamel@gmail.com>
 Noah Lev <camelidcamel@gmail.com> <37223377+camelid@users.noreply.github.com>
 Carl-Anton Ingmarsson <mail@carlanton.se> <ca.ingmarsson@gmail.com>
 Carol (Nichols || Goulding) <carol.nichols@gmail.com> <193874+carols10cents@users.noreply.github.com>

library/alloc/src/collections/linked_list.rs

@@ -442,27 +442,6 @@ impl<T> LinkedList<T> {
         }
     }
 
-    /// Moves all elements from `other` to the begin of the list.
-    #[unstable(feature = "linked_list_prepend", issue = "none")]
-    pub fn prepend(&mut self, other: &mut Self) {
-        match self.head {
-            None => mem::swap(self, other),
-            Some(mut head) => {
-                // `as_mut` is okay here because we have exclusive access to the entirety
-                // of both lists.
-                if let Some(mut other_tail) = other.tail.take() {
-                    unsafe {
-                        head.as_mut().prev = Some(other_tail);
-                        other_tail.as_mut().next = Some(head);
-                    }
-
-                    self.head = other.head.take();
-                    self.len += mem::replace(&mut other.len, 0);
-                }
-            }
-        }
-    }
-
     /// Provides a forward iterator.
     ///
     /// # Examples

library/std/src/io/mod.rs

@@ -526,7 +526,12 @@ pub trait Read {
     ///
     /// 1. This reader has reached its "end of file" and will likely no longer
     ///    be able to produce bytes. Note that this does not mean that the
-    ///    reader will *always* no longer be able to produce bytes.
+    ///    reader will *always* no longer be able to produce bytes. As an example,
+    ///    on Linux, this method will call the `recv` syscall for a [`TcpStream`],
+    ///    where returning zero indicates the connection was shut down correctly. While
+    ///    for [`File`], it is possible to reach the end of file and get zero as result,
+    ///    but if more data is appended to the file, future calls to `read` will return
+    ///    more data.
     /// 2. The buffer specified was 0 bytes in length.
     ///
     /// It is not an error if the returned value `n` is smaller than the buffer size,
@@ -568,6 +573,7 @@ pub trait Read {
     ///
     /// [`Ok(n)`]: Ok
     /// [`File`]: crate::fs::File
+    /// [`TcpStream`]: crate::net::TcpStream
     ///
     /// ```no_run
     /// use std::io;

library/std/src/primitive_docs.rs

@@ -345,6 +345,9 @@ mod prim_never {}
 mod prim_char {}
 
 #[doc(primitive = "unit")]
+#[doc(alias = "(")]
+#[doc(alias = ")")]
+#[doc(alias = "()")]
 //
 /// The `()` type, also called "unit".
 ///