diff --git a/.travis.yml b/.travis.yml
index 1c3bed4..f7efc2e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,16 +20,4 @@ before_install:
 #   # causing a CI slowdown, so this option is commented out by default. It can
 #   # be enabled per-branch to debug issues.
 #   - sudo tail -n 250 /var/log/syslog
-env:
-  global:
-    - RUST_BACKTRACE=1
-    # Enables additional cpu-specific optimizations.
-    - RUSTFLAGS="-D warnings -C target-cpu=native"
-    - MLOCK_SECRETS=false
-script:
-  - cargo clippy --all-targets -- --deny clippy
-  - cargo clippy --all-features --all-targets -- --deny clippy
-  - cargo fmt -- --check
-  - cargo test --features=use-insecure-test-only-mock-crypto --release
-  - cargo doc
-  - cargo deadlinks --dir target/doc/hbbft/
+script: ./ci.sh
diff --git a/ci.sh b/ci.sh
new file mode 100755
index 0000000..90888ff
--- /dev/null
+++ b/ci.sh
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+set -xe
+
+export RUST_BACKTRACE=1
+# Enables additional cpu-specific optimizations.
+export RUSTFLAGS="-D warnings -C target-cpu=native"
+
+# Currently, mlocking secrets is disabled due to secure memory limit issues.
+export MLOCK_SECRETS=false
+
+cargo clippy --all-targets -- --deny clippy
+cargo clippy --all-features --all-targets -- --deny clippy
+cargo fmt -- --check
+
+# We only test with mocktography, to ensure tests aren't unreasonably long.
+cargo test --features=use-insecure-test-only-mock-crypto --release
+cargo doc
+cargo deadlinks --dir target/doc/hbbft/