Auto merge of #48399 - GuillaumeGomez:rollup, r=GuillaumeGomez

Rollup of 12 pull requests

- Successful merges: #47379, #47833, #48106, #48198, #48314, #48325, #48335, #48352, #48354, #48360, #48382, #48397
- Failed merges:

3 files changed, 10 insertions, 8 deletions

diff --git a/src/libstd/ffi/c_str.rs b/src/libstd/ffi/c_str.rs
index e91d3a32a50..2519d830435 100644
--- a/src/libstd/ffi/c_str.rs
+++ b/src/libstd/ffi/c_str.rs
@@ -91,7 +91,7 @@ use sys;
 ///
 /// # Examples
 ///
-/// ```no_run
+/// ```ignore (extern-declaration)
 /// # fn main() {
 /// use std::ffi::CString;
 /// use std::os::raw::c_char;
@@ -150,7 +150,7 @@ pub struct CString {
 ///
 /// Inspecting a foreign C string:
 ///
-/// ```no_run
+/// ```ignore (extern-declaration)
 /// use std::ffi::CStr;
 /// use std::os::raw::c_char;
 ///
@@ -164,7 +164,7 @@ pub struct CString {
 ///
 /// Passing a Rust-originating C string:
 ///
-/// ```no_run
+/// ```ignore (extern-declaration)
 /// use std::ffi::{CString, CStr};
 /// use std::os::raw::c_char;
 ///
@@ -180,7 +180,7 @@ pub struct CString {
 ///
 /// Converting a foreign C string into a Rust [`String`]:
 ///
-/// ```no_run
+/// ```ignore (extern-declaration)
 /// use std::ffi::CStr;
 /// use std::os::raw::c_char;
 ///
@@ -307,7 +307,7 @@ impl CString {
     ///
     /// # Examples
     ///
-    /// ```no_run
+    /// ```ignore (extern-declaration)
     /// use std::ffi::CString;
     /// use std::os::raw::c_char;
     ///
@@ -389,7 +389,7 @@ impl CString {
     /// Create a `CString`, pass ownership to an `extern` function (via raw pointer), then retake
     /// ownership with `from_raw`:
     ///
-    /// ```no_run
+    /// ```ignore (extern-declaration)
     /// use std::ffi::CString;
     /// use std::os::raw::c_char;
     ///
@@ -882,7 +882,7 @@ impl CStr {
     ///
     /// # Examples
     ///
-    /// ```no_run
+    /// ```ignore (extern-declaration)
     /// # fn main() {
     /// use std::ffi::CStr;
     /// use std::os::raw::c_char;
diff --git a/src/libstd/io/mod.rs b/src/libstd/io/mod.rs
index aa07f64b678..d403bf6bfe5 100644
--- a/src/libstd/io/mod.rs
+++ b/src/libstd/io/mod.rs
@@ -1506,6 +1506,8 @@ pub trait BufRead: Read {
     /// error is encountered then `buf` may contain some bytes already read in
     /// the event that all data read so far was valid UTF-8.
     ///
+    /// [`read_until`]: #method.read_until
+    ///
     /// # Examples
     ///
     /// [`std::io::Cursor`][`Cursor`] is a type that implements `BufRead`. In
diff --git a/src/libstd/sys/unix/ext/net.rs b/src/libstd/sys/unix/ext/net.rs
index 86b0f35be92..31bdc5ea1f5 100644
--- a/src/libstd/sys/unix/ext/net.rs
+++ b/src/libstd/sys/unix/ext/net.rs
@@ -415,7 +415,7 @@ impl UnixStream {
     /// method.
     ///
     /// [`None`]: ../../../../std/option/enum.Option.html#variant.None
-    /// [`read`]: ../../../../std/io/trait.Write.html#tymethod.write
+    /// [`write`]: ../../../../std/io/trait.Write.html#tymethod.write
     /// [`Duration`]: ../../../../std/time/struct.Duration.html
     ///
     /// # Examples