diff --git a/src/doc/book b/src/doc/book
index 16c9dee7666c2..cff0930664b68 160000
--- a/src/doc/book
+++ b/src/doc/book
@@ -1 +1 @@
-Subproject commit 16c9dee7666c2b2766fd98d89003e028679d1207
+Subproject commit cff0930664b688f1dd22aefb3d16944eb4cdbfd5
diff --git a/src/doc/nomicon b/src/doc/nomicon
index ae42ad7aa4d79..7fd493465b7dd 160000
--- a/src/doc/nomicon
+++ b/src/doc/nomicon
@@ -1 +1 @@
-Subproject commit ae42ad7aa4d7907cca941371c9eee8de8c2ee40d
+Subproject commit 7fd493465b7dd6cf3476f0b834884059bbdd1d93
diff --git a/src/doc/reference b/src/doc/reference
index 219e261ddb833..821355a6fd642 160000
--- a/src/doc/reference
+++ b/src/doc/reference
@@ -1 +1 @@
-Subproject commit 219e261ddb833a5683627b0a9be87a0f4486abb9
+Subproject commit 821355a6fd642b71988a2f88a3162fb358732012
diff --git a/src/doc/rust-by-example b/src/doc/rust-by-example
index e3719fc78ff4a..e459fb3f07f2b 160000
--- a/src/doc/rust-by-example
+++ b/src/doc/rust-by-example
@@ -1 +1 @@
-Subproject commit e3719fc78ff4a21dfd13cfcc9e2ca42cb5de29f4
+Subproject commit e459fb3f07f2b930ccd25d348671b8eae233fd64