diff --git a/src/doc/unstable-book/src/language-features/const-in-array-repeat-expressions.md b/src/doc/unstable-book/src/language-features/const-in-array-repeat-expressions.md
index 09d1b19b4c3c..940916944bda 100644
--- a/src/doc/unstable-book/src/language-features/const-in-array-repeat-expressions.md
+++ b/src/doc/unstable-book/src/language-features/const-in-array-repeat-expressions.md
@@ -2,7 +2,7 @@
 
 The tracking issue for this feature is: [#49147]
 
-[#44109]: https://github.com/rust-lang/rust/issues/49147
+[#49147]: https://github.com/rust-lang/rust/issues/49147
 
 ------------------------
 
diff --git a/src/doc/unstable-book/src/language-features/impl-trait-in-bindings.md b/src/doc/unstable-book/src/language-features/impl-trait-in-bindings.md
index 896465cf6497..5c6aa912c1b2 100644
--- a/src/doc/unstable-book/src/language-features/impl-trait-in-bindings.md
+++ b/src/doc/unstable-book/src/language-features/impl-trait-in-bindings.md
@@ -1,8 +1,8 @@
 # `impl_trait_in_bindings`
 
-The tracking issue for this feature is: [#34511]
+The tracking issue for this feature is: [#63065]
 
-[#34511]: https://github.com/rust-lang/rust/issues/34511
+[#63065]: https://github.com/rust-lang/rust/issues/63065
 
 ------------------------
 
diff --git a/src/doc/unstable-book/src/language-features/link-cfg.md b/src/doc/unstable-book/src/language-features/link-cfg.md
new file mode 100644
index 000000000000..ee0fd5bf8698
--- /dev/null
+++ b/src/doc/unstable-book/src/language-features/link-cfg.md
@@ -0,0 +1,5 @@
+# `link_cfg`
+
+This feature is internal to the Rust compiler and is not intended for general use.
+
+------------------------
diff --git a/src/doc/unstable-book/src/language-features/trait-alias.md b/src/doc/unstable-book/src/language-features/trait-alias.md
index 4f2db040160c..f1be053ddc42 100644
--- a/src/doc/unstable-book/src/language-features/trait-alias.md
+++ b/src/doc/unstable-book/src/language-features/trait-alias.md
@@ -2,7 +2,7 @@
 
 The tracking issue for this feature is: [#41517]
 
-[#41417]: https://github.com/rust-lang/rust/issues/41517
+[#41517]: https://github.com/rust-lang/rust/issues/41517
 
 ------------------------
 
diff --git a/src/doc/unstable-book/src/language-features/transparent-unions.md b/src/doc/unstable-book/src/language-features/transparent-unions.md
index b731c9ea6d01..9b39b8971644 100644
--- a/src/doc/unstable-book/src/language-features/transparent-unions.md
+++ b/src/doc/unstable-book/src/language-features/transparent-unions.md
@@ -2,7 +2,7 @@
 
 The tracking issue for this feature is [#60405]
 
-[60405]: https://github.com/rust-lang/rust/issues/60405
+[#60405]: https://github.com/rust-lang/rust/issues/60405
 
 ----
 
diff --git a/src/doc/unstable-book/src/library-features/read-initializer.md b/src/doc/unstable-book/src/library-features/read-initializer.md
deleted file mode 100644
index 898fe58eeee5..000000000000
--- a/src/doc/unstable-book/src/library-features/read-initializer.md
+++ /dev/null
@@ -1,7 +0,0 @@
-# `read_initializer`
-
-The tracking issue for this feature is: [#42788]
-
-[#0]: https://github.com/rust-lang/rust/issues/42788
-
-------------------------
diff --git a/src/doc/unstable-book/src/library-features/tidy-test-never-used-anywhere-else.md b/src/doc/unstable-book/src/library-features/tidy-test-never-used-anywhere-else.md
new file mode 100644
index 000000000000..c194d79a19d3
--- /dev/null
+++ b/src/doc/unstable-book/src/library-features/tidy-test-never-used-anywhere-else.md
@@ -0,0 +1,5 @@
+# `tidy_test_never_used_anywhere_else`
+
+This feature is internal to the Rust compiler and is not intended for general use.
+
+------------------------