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index a3322af..ead1294 100644
--- a/libraries/crypto/Cargo.toml
+++ b/libraries/crypto/Cargo.toml
@@ -23,11 +23,6 @@ serde = { version = "1.0", optional = true, features = ["derive"] }
 serde_json = { version = "1.0", optional = true }
 regex = { version = "1", optional = true }
 
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-# whole block once CTAP is a library.
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-
 [features]
 std = ["cbor/std", "hex", "rand", "ring", "untrusted", "serde", "serde_json", "regex"]
 derive_debug = []
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new file mode 100644
index 0000000..cc0129d
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index 110126b..e370a75 100644
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diff --git a/patches/libtock-rs/01-remove-test-runner.patch b/patches/libtock-rs/01-remove-test-runner.patch
new file mode 100644
index 0000000..93c525d
--- /dev/null
+++ b/patches/libtock-rs/01-remove-test-runner.patch
@@ -0,0 +1,12 @@
+diff --git a/Cargo.toml b/Cargo.toml
+index f5cb932..38119b5 100644
+--- a/Cargo.toml
++++ b/Cargo.toml
+@@ -62,6 +62,6 @@ exclude = [ "tock" ]
+ members = [
+     "codegen",
+     "core",
+-    "test_runner",
++    # "test_runner",
+     "tools/print_sizes",
+ ]
diff --git a/setup-submodules.sh b/setup-submodules.sh
index e767b78..a133536 100755
--- a/setup-submodules.sh
+++ b/setup-submodules.sh
@@ -56,19 +56,16 @@ echo $done_text
 )
 
 # Now apply patches to libtock-rs. Do that in a sub-shell.
-#
-# Commented out as there are not patches at the moment, and the pattern fails in
-# that case.
-#(
-#  cd third_party/libtock-rs/ && \
-#  for p in ../../patches/libtock-rs/[0-9][0-9]-*.patch
-#  do
-#    echo -n '[-] Applying patch "'$(basename $p)'"... '
-#    if git apply "$p"
-#    then
-#      echo $done_text
-#    else
-#      patch_conflict_detected
-#    fi
-#  done
-#)
+(
+  cd third_party/libtock-rs/ && \
+  for p in ../../patches/libtock-rs/[0-9][0-9]-*.patch
+  do
+    echo -n '[-] Applying patch "'$(basename $p)'"... '
+    if git apply "$p"
+    then
+      echo $done_text
+    else
+      patch_conflict_detected
+    fi
+  done
+)
diff --git a/third_party/lang-items/Cargo.lock b/third_party/lang-items/Cargo.lock
new file mode 100644
index 0000000..f4ad3d2
--- /dev/null
+++ b/third_party/lang-items/Cargo.lock
@@ -0,0 +1,74 @@
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new file mode 100644
index 0000000..996cd14
--- /dev/null
+++ b/third_party/libtock-drivers/Cargo.lock
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new file mode 100644
index 0000000..b8f85fc
--- /dev/null
+++ b/tools/heapviz/Cargo.lock
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