diff --git a/.gitignore b/.gitignore
index 60835d7aef..a496dcd1fe 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 *~
+*.log
 Cargo.lock
 target
 travis-ci/travis_rsa
diff --git a/Cargo.toml b/Cargo.toml
index 02335cdc01..e8e01979ed 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,6 +19,8 @@ random = "0.12"
 
 [features]
 tensorflow_unstable = []
+# This is for testing purposes; users should not use this.
+nightly = []
 
 [workspace]
 
diff --git a/examples/addition.rs b/examples/addition.rs
index 376b438997..96efd783ca 100644
--- a/examples/addition.rs
+++ b/examples/addition.rs
@@ -1,3 +1,6 @@
+#![cfg_attr(feature="nightly", feature(alloc_system))]
+#[cfg(feature="nightly")]
+extern crate alloc_system;
 extern crate tensorflow;
 
 use std::error::Error;
diff --git a/examples/expressions.rs b/examples/expressions.rs
index 8f774e7f40..054d0bcd7f 100644
--- a/examples/expressions.rs
+++ b/examples/expressions.rs
@@ -1,3 +1,6 @@
+#![cfg_attr(feature="nightly", feature(alloc_system))]
+#[cfg(feature="nightly")]
+extern crate alloc_system;
 extern crate random;
 extern crate tensorflow;
 
diff --git a/examples/regression.rs b/examples/regression.rs
index c0d9622275..a123216944 100644
--- a/examples/regression.rs
+++ b/examples/regression.rs
@@ -1,3 +1,6 @@
+#![cfg_attr(feature="nightly", feature(alloc_system))]
+#[cfg(feature="nightly")]
+extern crate alloc_system;
 extern crate random;
 extern crate tensorflow;
 
diff --git a/examples/regression_savedmodel.rs b/examples/regression_savedmodel.rs
index 0a064fd871..7b885df071 100644
--- a/examples/regression_savedmodel.rs
+++ b/examples/regression_savedmodel.rs
@@ -1,3 +1,6 @@
+#![cfg_attr(feature="nightly", feature(alloc_system))]
+#[cfg(feature="nightly")]
+extern crate alloc_system;
 extern crate random;
 extern crate tensorflow;
 
diff --git a/run-valgrind b/run-valgrind
new file mode 100755
index 0000000000..dcd3e6bfde
--- /dev/null
+++ b/run-valgrind
@@ -0,0 +1,48 @@
+#!/bin/bash
+
+# Runs valgrind and reports results.
+#
+# Since jemalloc dropped support for valgrind
+# (https://github.com/jemalloc/jemalloc/issues/369), and both Rust and TensorFlow
+# use jemalloc by default, we need to compile both without it.  Unfortunately,
+# compiling TensorFlow from source is expensive, so this script takes a long
+# time to run.
+
+set -e
+
+cd $(dirname $(readlink -f "$0"))
+
+tensorflow_version=1.1.0
+
+valgrind_log=valgrind.log
+truncate --size=0 "$valgrind_log"
+
+# Disable jemalloc in TensorFlow.
+export TF_NEED_JEMALLOC=0
+
+# Disable jemalloc in Rust.
+export TF_RUST_BUILD_FROM_SRC=true
+
+# Don't need to rebuild the world, and `cargo clean --package tensorflow-sys` doesn't seem to do the job.
+rm -rf tensorflow-sys/target
+
+# This is the very expensive step.
+cargo +nightly build --features=nightly -p tensorflow-sys -vvv
+
+# Run valgrind against all the things.
+export LD_LIBRARY_PATH="$(echo "$PWD"/target/debug/build/tensorflow-sys-*/out/lib-v$tensorflow_version)"
+echo "LD_LIBRARY_PATH=$LD_LIBRARY_PATH"
+for example in addition regression expressions; do
+    cargo +nightly build --features='nightly tensorflow_unstable' --example="$example"
+    valgrind --leak-check=full target/debug/examples/"$example" >> "$valgrind_log" 2>&1
+done
+
+rel_log=$(readlink -f "$PWD"/"$valgrind_log")
+if grep -i 'error summary' < "$valgrind_log" > /dev/null; then
+    echo "Error running valgrind.  See $rel_log"
+fi
+
+# Aggregate results.
+lost_bytes=$(awk '/(definitely|indirectly) lost:/{sum+=gensub(",","","g",$4)}END{print sum}' < "$valgrind_log")
+echo "Lost bytes: $lost_bytes"
+echo "For details, see $rel_log"