diff --git a/src/doc/reference b/src/doc/reference
index 3bf3402aea982..387392674d746 160000
--- a/src/doc/reference
+++ b/src/doc/reference
@@ -1 +1 @@
-Subproject commit 3bf3402aea982b876eb56c87da17b0685c6461d5
+Subproject commit 387392674d74656f7cb437c05a96f0c52ea8e601
diff --git a/src/doc/rust-by-example b/src/doc/rust-by-example
index 0d7964d5b22cf..8a8918c698534 160000
--- a/src/doc/rust-by-example
+++ b/src/doc/rust-by-example
@@ -1 +1 @@
-Subproject commit 0d7964d5b22cf920237ef1282d869564b4883b88
+Subproject commit 8a8918c698534547fa8a1a693cb3e7277f0bfb2f