travis: Use hide_output in dist-powerpc64-linux

Looks like we blew the 4MB cap, so let's hide some more output.

src/ci/docker/dist-powerpc64-linux/Dockerfile

@@ -61,7 +61,7 @@ USER rustbuild
 WORKDIR /tmp
 
 COPY patches/ /tmp/patches/
-COPY powerpc64-linux-gnu.config build-powerpc64-toolchain.sh /tmp/
+COPY shared.sh powerpc64-linux-gnu.config build-powerpc64-toolchain.sh /tmp/
 RUN ./build-powerpc64-toolchain.sh
 
 USER root

src/ci/docker/dist-powerpc64-linux/build-powerpc64-toolchain.sh

@@ -11,22 +11,7 @@
 
 set -ex
 
-hide_output() {
-  set +x
-  on_err="
-echo ERROR: An error was encountered with the build.
-cat /tmp/build.log
-exit 1
-"
-  trap "$on_err" ERR
-  bash -c "while true; do sleep 30; echo \$(date) - building ...; done" &
-  PING_LOOP_PID=$!
-  $@ &> /tmp/build.log
-  rm /tmp/build.log
-  trap - ERR
-  kill $PING_LOOP_PID
-  set -x
-}
+source shared.sh
 
 mkdir build
 cd build

src/ci/docker/dist-powerpc64-linux/build-powerpc64le-toolchain.sh

@@ -11,6 +11,8 @@
 
 set -ex
 
+source shared.sh
+
 BINUTILS=2.25.1
 GCC=5.3.0
 TARGET=powerpc64le-linux-gnu
@@ -40,9 +42,9 @@ pushd binutils-$TARGET
 curl https://ftp.gnu.org/gnu/binutils/binutils-$BINUTILS.tar.bz2 | tar xjf -
 mkdir binutils-build
 cd binutils-build
-../binutils-$BINUTILS/configure --target=$TARGET --with-sysroot=$SYSROOT
-make -j10
-make install
+hide_output ../binutils-$BINUTILS/configure --target=$TARGET --with-sysroot=$SYSROOT
+hide_output make -j10
+hide_output make install
 popd
 rm -rf binutils-$TARGET
 
@@ -51,11 +53,11 @@ mkdir gcc-$TARGET
 pushd gcc-$TARGET
 curl https://ftp.gnu.org/gnu/gcc/gcc-$GCC/gcc-$GCC.tar.bz2 | tar xjf -
 cd gcc-$GCC
-./contrib/download_prerequisites
+hide_output ./contrib/download_prerequisites
 
 mkdir ../gcc-build
 cd ../gcc-build
-../gcc-$GCC/configure                            \
+hide_output ../gcc-$GCC/configure                            \
   --enable-languages=c,c++                       \
   --target=$TARGET                               \
   --with-cpu=power8                              \
@@ -72,8 +74,8 @@ cd ../gcc-build
   --disable-libsanitizer                         \
   --disable-libquadmath-support                  \
   --disable-lto
-make -j10
-make install
+hide_output hide_output make -j10
+hide_output make install
 
 popd
 rm -rf gcc-$TARGET

src/ci/docker/dist-powerpc64-linux/shared.sh

@@ -0,0 +1,25 @@
+# Copyright 2017 The Rust Project Developers. See the COPYRIGHT
+# file at the top-level directory of this distribution and at
+# http://rust-lang.org/COPYRIGHT.
+#
+# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+# option. This file may not be copied, modified, or distributed
+# except according to those terms.
+
+hide_output() {
+  set +x
+  on_err="
+echo ERROR: An error was encountered with the build.
+cat /tmp/build.log
+exit 1
+"
+  trap "$on_err" ERR
+  bash -c "while true; do sleep 30; echo \$(date) - building ...; done" &
+  PING_LOOP_PID=$!
+  $@ &> /tmp/build.log
+  trap - ERR
+  kill $PING_LOOP_PID
+  set -x
+}