Update books

ehuss · ehuss · commit 107ed0ace9a9 · 2021-08-10T12:38:00.000-07:00
diff --git a/src/doc/book b/src/doc/book
@@ -1 +1 @@
-Subproject commit a07036f864b37896b31eb996cd7aedb489f69a1f
+Subproject commit 7e49659102f0977d9142190e1ba23345c0f00eb1
diff --git a/src/doc/embedded-book b/src/doc/embedded-book
@@ -1 +1 @@
-Subproject commit 09986cd352404eb4659db44613b27cac9aa652fc
+Subproject commit 4f9fcaa30d11ba52b641e6fd5206536d65838af9
diff --git a/src/doc/nomicon b/src/doc/nomicon
@@ -1 +1 @@
-Subproject commit f51734eb5566c826b471977747ea3d7d6915bbe9
+Subproject commit 0c7e5bd1428e7838252bb57b7f0fbfda4ec82f02
diff --git a/src/doc/reference b/src/doc/reference
@@ -1 +1 @@
-Subproject commit 3b7be075af5d6e402a18efff672a8a265b4596fd
+Subproject commit 4884fe45c14f8b22121760fb117181bb4da8dfe0
diff --git a/src/doc/rustc-dev-guide b/src/doc/rustc-dev-guide
@@ -1 +1 @@
-Subproject commit 09343d6f921d2a07c66f8c41ec3d65bf1fa52556
+Subproject commit c4644b427cbdaafc7a87be0ccdf5d8aaa07ac35f
