run in xenial (docker)

.travis.yml

@@ -63,6 +63,7 @@ matrix:
     - env: TARGET=powerpc64le-unknown-linux-gnu
       os: linux
       dist: trusty
+      services: docker
       sudo: required
       addons:
         apt:

ci/env.sh

@@ -29,6 +29,7 @@ case $TARGET in
         export QEMU_LD_PREFIX=/usr/powerpc-linux-gnu
         ;;
     powerpc64le-unknown-linux-gnu)
+        export DOCKER=y
         export PREFIX=powerpc64le-linux-gnu-
         export QEMU=qemu-ppc64le
         export QEMU_LD_PREFIX=/usr/powerpc64le-linux-gnu

ci/install.sh

@@ -2,6 +2,15 @@ set -ex
 
 . $(dirname $0)/env.sh
 
+install_qemu() {
+    case $TARGET in
+        powerpc64-unknown-linux-gnu)
+            sudo apt-get install -y --no-install-recommends \
+                 qemu-user
+            ;;
+    esac
+}
+
 install_binutils() {
     case $TRAVIS_OS_NAME in
         osx)
@@ -49,11 +58,14 @@ EOF
 }
 
 main() {
-    install_binutils
+    if [[ -z $DOCKER ]]; then
-    install_c_toolchain
+        install_qemu
-    install_rust
+        install_binutils
-    add_rustup_target
+        install_c_toolchain
-    configure_cargo
+        install_rust
+        add_rustup_target
+        configure_cargo
+    fi
 }
 
 main

ci/script.sh

@@ -32,9 +32,19 @@ inspect() {
 }
 
 main() {
-    build
+    if [[ $DOCKER ]]; then
-    run_tests
+        docker run \
-    inspect
+               -e TARGET=$TARGET \
+               -e TRAVIS_OS_NAME=$TRAVIS_OS_NAME \
+               -v $(pwd)/ci:/mnt \
+               ubuntu:16.04 \
+               sh -c "bash /mnt/install.sh; bash /mnt/script.sh"
+    else
+        build
+        run_tests
+        inspect
+    fi
+
 }
 
 main