Fix broken links to second edition TRPL.

Fixes https://github.com/rust-lang/rust/issues/57104.

4 files changed, 7 insertions, 7 deletions

diff --git a/src/libcore/marker.rs b/src/libcore/marker.rs
index 53af924376b..65752ba0321 100644
--- a/src/libcore/marker.rs
+++ b/src/libcore/marker.rs
@@ -85,7 +85,7 @@ impl<T: ?Sized> !Send for *mut T { }
     on(parent_trait="std::path::Path", label="borrow the `Path` instead"),
     message="the size for values of type `{Self}` cannot be known at compilation time",
     label="doesn't have a size known at compile-time",
-    note="to learn more, visit <https://doc.rust-lang.org/book/second-edition/\
+    note="to learn more, visit <https://doc.rust-lang.org/book/\
           ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>",
 )]
 #[fundamental] // for Default, for example, which requires that `[T]: !Default` be evaluatable
diff --git a/src/libcore/ops/deref.rs b/src/libcore/ops/deref.rs
index f2187bd6686..075c3a084f4 100644
--- a/src/libcore/ops/deref.rs
+++ b/src/libcore/ops/deref.rs
@@ -27,7 +27,7 @@
 /// [book] as well as the reference sections on [the dereference operator]
 /// [ref-deref-op], [method resolution] and [type coercions].
 ///
-/// [book]: ../../book/second-edition/ch15-02-deref.html
+/// [book]: ../../book/ch15-02-deref.html
 /// [`DerefMut`]: trait.DerefMut.html
 /// [more]: #more-on-deref-coercion
 /// [ref-deref-op]: ../../reference/expressions/operator-expr.html#the-dereference-operator
@@ -117,7 +117,7 @@ impl<T: ?Sized> Deref for &mut T {
 /// [book] as well as the reference sections on [the dereference operator]
 /// [ref-deref-op], [method resolution] and [type coercions].
 ///
-/// [book]: ../../book/second-edition/ch15-02-deref.html
+/// [book]: ../../book/ch15-02-deref.html
 /// [`Deref`]: trait.Deref.html
 /// [more]: #more-on-deref-coercion
 /// [ref-deref-op]: ../../reference/expressions/operator-expr.html#the-dereference-operator
diff --git a/src/libcore/ops/drop.rs b/src/libcore/ops/drop.rs
index 8d16fdebb3e..eae63ea2390 100644
--- a/src/libcore/ops/drop.rs
+++ b/src/libcore/ops/drop.rs
@@ -11,7 +11,7 @@
 /// Refer to [the chapter on `Drop` in *The Rust Programming Language*][book]
 /// for some more elaboration.
 ///
-/// [book]: ../../book/second-edition/ch15-03-drop.html
+/// [book]: ../../book/ch15-03-drop.html
 ///
 /// # Examples
 ///
diff --git a/src/libcore/ops/function.rs b/src/libcore/ops/function.rs
index ec2e53412a0..3a1d765f7b8 100644
--- a/src/libcore/ops/function.rs
+++ b/src/libcore/ops/function.rs
@@ -27,7 +27,7 @@
 /// `Fn(usize, bool) -> usize`). Those interested in the technical details of
 /// this can refer to [the relevant section in the *Rustonomicon*][nomicon].
 ///
-/// [book]: ../../book/second-edition/ch13-01-closures.html
+/// [book]: ../../book/ch13-01-closures.html
 /// [`FnMut`]: trait.FnMut.html
 /// [`FnOnce`]: trait.FnOnce.html
 /// [function pointers]: ../../std/primitive.fn.html
@@ -95,7 +95,7 @@ pub trait Fn<Args> : FnMut<Args> {
 /// `Fn(usize, bool) -> usize`). Those interested in the technical details of
 /// this can refer to [the relevant section in the *Rustonomicon*][nomicon].
 ///
-/// [book]: ../../book/second-edition/ch13-01-closures.html
+/// [book]: ../../book/ch13-01-closures.html
 /// [`Fn`]: trait.Fn.html
 /// [`FnOnce`]: trait.FnOnce.html
 /// [function pointers]: ../../std/primitive.fn.html
@@ -173,7 +173,7 @@ pub trait FnMut<Args> : FnOnce<Args> {
 /// `Fn(usize, bool) -> usize`). Those interested in the technical details of
 /// this can refer to [the relevant section in the *Rustonomicon*][nomicon].
 ///
-/// [book]: ../../book/second-edition/ch13-01-closures.html
+/// [book]: ../../book/ch13-01-closures.html
 /// [`Fn`]: trait.Fn.html
 /// [`FnMut`]: trait.FnMut.html
 /// [function pointers]: ../../std/primitive.fn.html