testing: fix i686 builds (gcc-multilib)

Signed-off-by: Paul Osborne <[email protected]>

Author: posborne

.travis.yml

@@ -4,23 +4,21 @@ dist: trusty
 services:
   - docker
 
-# rust:
-#   - 1.1.0  # Oldest supported version
-#   - 1.2.0
-#   - 1.3.0
-#   - 1.4.0
-#   - 1.5.0
-#   - 1.6.0
-#   - stable
-#   - beta
-#   - nightly
+rust:
+  - 1.1.0  # Oldest supported version
+  - stable
+  - beta
+  - nightly
 
 script:
   - bash ci/run-travis.sh
 
-# os:
-#   - linux
-#   - osx
+env:
+  - ARCH=x86_64
+
+os:
+  - linux
+  - osx
 
 # Failures on nightly shouldn't fail the overall build.
 matrix:

ci/run-travis.sh

@@ -27,6 +27,11 @@ if [ "$TARGET" = "" ]; then
   TARGET=$HOST
 fi
 
+if [ "$TARGET" = "i686-unknown-linux-gnu" ]; then
+    sudo apt-get -y update
+    sudo apt-get install -y gcc-multilib
+fi
+
 if [ "$DOCKER_IMAGE" = "" ]; then
   export RUST_TEST_THREADS=1
   curl -sSL "https://raw.githubusercontent.com/carllerche/travis-rust-matrix/master/test" | bash