diff --git a/src/doc/edition-guide b/src/doc/edition-guide
index 5a14f7276ebc0..f5abcf137698e 160000
--- a/src/doc/edition-guide
+++ b/src/doc/edition-guide
@@ -1 +1 @@
-Subproject commit 5a14f7276ebc0bd100974f02b918f30472c782fc
+Subproject commit f5abcf137698e5ad6ebed359d69654ff705346af
diff --git a/src/doc/nomicon b/src/doc/nomicon
index 5012a37c682b2..5791ca9f5d671 160000
--- a/src/doc/nomicon
+++ b/src/doc/nomicon
@@ -1 +1 @@
-Subproject commit 5012a37c682b26c4e19433888ed2ca9b129696ca
+Subproject commit 5791ca9f5d671328af7a8fe87b42ca90c7211d28
diff --git a/src/doc/reference b/src/doc/reference
index 82da570bafd9e..eda708334abad 160000
--- a/src/doc/reference
+++ b/src/doc/reference
@@ -1 +1 @@
-Subproject commit 82da570bafd9efed421bdbae0f8603ede8dd308b
+Subproject commit eda708334abad285d63bc1f3558a51e8b790346e
diff --git a/src/tools/rustbook/Cargo.lock b/src/tools/rustbook/Cargo.lock
index 76f39ae18b763..24d7c6cb9e428 100644
--- a/src/tools/rustbook/Cargo.lock
+++ b/src/tools/rustbook/Cargo.lock
@@ -1212,9 +1212,9 @@ checksum = "f8dcc9c7d52a811697d2151c701e0d08956f92b0e24136cf4cf27b57a6a0d9bf"
 
 [[package]]
 name = "railroad"
-version = "0.3.7"
+version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "813b53dbe6d583f1ac0c3fb394e0ce3b613530adff8265c274fcdfcd82cc6da5"
+checksum = "7286d8b4d9fc00078819e06ff24cefa276f39461ff53b74d63d24736be27192f"
 dependencies = [
  "unicode-width",
 ]