Merge branch 'master' into issue-32540

33 files changed, 216 insertions, 159 deletions

diff --git a/src/ci/docker/armhf-gnu/Dockerfile b/src/ci/docker/armhf-gnu/Dockerfile
index a3e74adbb36..933562c79e5 100644
--- a/src/ci/docker/armhf-gnu/Dockerfile
+++ b/src/ci/docker/armhf-gnu/Dockerfile
@@ -74,7 +74,7 @@ RUN arm-linux-gnueabihf-gcc addentropy.c -o rootfs/addentropy -static
 RUN curl -O http://ftp.nl.debian.org/debian/dists/jessie/main/installer-armhf/current/images/device-tree/vexpress-v2p-ca15-tc1.dtb
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
diff --git a/src/ci/docker/cross/Dockerfile b/src/ci/docker/cross/Dockerfile
index 72675bc9a44..8dc02ab522c 100644
--- a/src/ci/docker/cross/Dockerfile
+++ b/src/ci/docker/cross/Dockerfile
@@ -22,7 +22,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   pkg-config
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
diff --git a/src/ci/docker/dist-android/Dockerfile b/src/ci/docker/dist-android/Dockerfile
index 031ad0ddcd4..44d6863bf0b 100644
--- a/src/ci/docker/dist-android/Dockerfile
+++ b/src/ci/docker/dist-android/Dockerfile
@@ -32,7 +32,7 @@ RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-ini
 ENTRYPOINT ["/usr/bin/dumb-init", "--"]
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 ENV TARGETS=arm-linux-androideabi
diff --git a/src/ci/docker/dist-arm-linux/Dockerfile b/src/ci/docker/dist-arm-linux/Dockerfile
index ae439f5b30f..7facc52390f 100644
--- a/src/ci/docker/dist-arm-linux/Dockerfile
+++ b/src/ci/docker/dist-arm-linux/Dockerfile
@@ -27,10 +27,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   libssl-dev \
   pkg-config
 
-RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
-      chmod +x /usr/local/bin/sccache
-
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
     dpkg -i dumb-init_*.deb && \
     rm dumb-init_*.deb
@@ -65,6 +61,10 @@ RUN ./build-toolchains.sh
 
 USER root
 
+RUN curl -o /usr/local/bin/sccache \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
+      chmod +x /usr/local/bin/sccache
+
 ENV PATH=$PATH:/x-tools/arm-unknown-linux-gnueabi/bin
 ENV PATH=$PATH:/x-tools/arm-unknown-linux-gnueabihf/bin
 
diff --git a/src/ci/docker/dist-armv7-aarch64-linux/Dockerfile b/src/ci/docker/dist-armv7-aarch64-linux/Dockerfile
index 7f3c5522587..369e5a7dffe 100644
--- a/src/ci/docker/dist-armv7-aarch64-linux/Dockerfile
+++ b/src/ci/docker/dist-armv7-aarch64-linux/Dockerfile
@@ -27,10 +27,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   libssl-dev \
   pkg-config
 
-RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
-      chmod +x /usr/local/bin/sccache
-
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
     dpkg -i dumb-init_*.deb && \
     rm dumb-init_*.deb
@@ -66,6 +62,10 @@ RUN ./build-toolchains.sh
 
 USER root
 
+RUN curl -o /usr/local/bin/sccache \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
+      chmod +x /usr/local/bin/sccache
+
 ENV PATH=$PATH:/x-tools/aarch64-unknown-linux-gnueabi/bin
 ENV PATH=$PATH:/x-tools/armv7-unknown-linux-gnueabihf/bin
 
diff --git a/src/ci/docker/dist-freebsd/Dockerfile b/src/ci/docker/dist-freebsd/Dockerfile
index deee78847bb..633f58ea474 100644
--- a/src/ci/docker/dist-freebsd/Dockerfile
+++ b/src/ci/docker/dist-freebsd/Dockerfile
@@ -26,7 +26,7 @@ RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-ini
 ENTRYPOINT ["/usr/bin/dumb-init", "--"]
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 ENV \
diff --git a/src/ci/docker/dist-fuchsia/Dockerfile b/src/ci/docker/dist-fuchsia/Dockerfile
index de8ed3378eb..ed37a9e842e 100644
--- a/src/ci/docker/dist-fuchsia/Dockerfile
+++ b/src/ci/docker/dist-fuchsia/Dockerfile
@@ -29,7 +29,7 @@ RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-ini
 ENTRYPOINT ["/usr/bin/dumb-init", "--"]
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 ENV \
diff --git a/src/ci/docker/dist-i586-gnu-i686-musl/Dockerfile b/src/ci/docker/dist-i586-gnu-i686-musl/Dockerfile
index f19860405b0..d88ec7aab34 100644
--- a/src/ci/docker/dist-i586-gnu-i686-musl/Dockerfile
+++ b/src/ci/docker/dist-i586-gnu-i686-musl/Dockerfile
@@ -26,7 +26,7 @@ RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-ini
 ENTRYPOINT ["/usr/bin/dumb-init", "--"]
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 ENV RUST_CONFIGURE_ARGS \
diff --git a/src/ci/docker/dist-mips-linux/Dockerfile b/src/ci/docker/dist-mips-linux/Dockerfile
index 8de9b6abddd..938c53ae488 100644
--- a/src/ci/docker/dist-mips-linux/Dockerfile
+++ b/src/ci/docker/dist-mips-linux/Dockerfile
@@ -18,7 +18,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   pkg-config
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
diff --git a/src/ci/docker/dist-mips64-linux/Dockerfile b/src/ci/docker/dist-mips64-linux/Dockerfile
index 134f475f82d..45de8100b4f 100644
--- a/src/ci/docker/dist-mips64-linux/Dockerfile
+++ b/src/ci/docker/dist-mips64-linux/Dockerfile
@@ -18,7 +18,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   pkg-config
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
diff --git a/src/ci/docker/dist-powerpc-linux/Dockerfile b/src/ci/docker/dist-powerpc-linux/Dockerfile
index 1c61714adbd..c1e5e863ae0 100644
--- a/src/ci/docker/dist-powerpc-linux/Dockerfile
+++ b/src/ci/docker/dist-powerpc-linux/Dockerfile
@@ -27,10 +27,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   libssl-dev \
   pkg-config
 
-RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
-      chmod +x /usr/local/bin/sccache
-
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
     dpkg -i dumb-init_*.deb && \
     rm dumb-init_*.deb
@@ -66,6 +62,10 @@ RUN ./build-powerpc-toolchain.sh
 
 USER root
 
+RUN curl -o /usr/local/bin/sccache \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
+      chmod +x /usr/local/bin/sccache
+
 ENV PATH=$PATH:/x-tools/powerpc-unknown-linux-gnu/bin
 
 ENV \
diff --git a/src/ci/docker/dist-powerpc64-linux/Dockerfile b/src/ci/docker/dist-powerpc64-linux/Dockerfile
index 975ae1d3ec9..7413c327323 100644
--- a/src/ci/docker/dist-powerpc64-linux/Dockerfile
+++ b/src/ci/docker/dist-powerpc64-linux/Dockerfile
@@ -25,11 +25,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   wget \
   xz-utils \
   libssl-dev \
-  pkg-config
-
-RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
-      chmod +x /usr/local/bin/sccache
+ pkg-config
 
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
     dpkg -i dumb-init_*.deb && \
@@ -70,6 +66,10 @@ RUN apt-get install -y --no-install-recommends rpm2cpio cpio
 COPY build-powerpc64le-toolchain.sh /tmp/
 RUN ./build-powerpc64le-toolchain.sh
 
+RUN curl -o /usr/local/bin/sccache \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
+      chmod +x /usr/local/bin/sccache
+
 ENV PATH=$PATH:/x-tools/powerpc64-unknown-linux-gnu/bin
 
 ENV \
diff --git a/src/ci/docker/dist-s390x-linux-netbsd/Dockerfile b/src/ci/docker/dist-s390x-linux-netbsd/Dockerfile
index fd67f185162..4180006690f 100644
--- a/src/ci/docker/dist-s390x-linux-netbsd/Dockerfile
+++ b/src/ci/docker/dist-s390x-linux-netbsd/Dockerfile
@@ -27,10 +27,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   libssl-dev \
   pkg-config
 
-RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
-      chmod +x /usr/local/bin/sccache
-
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
     dpkg -i dumb-init_*.deb && \
     rm dumb-init_*.deb
@@ -64,17 +60,21 @@ COPY patches/ /tmp/patches/
 COPY s390x-linux-gnu.config build-s390x-toolchain.sh /tmp/
 RUN ./build-s390x-toolchain.sh
 
-USER root
-
 COPY build-netbsd-toolchain.sh /tmp/
 RUN ./build-netbsd-toolchain.sh
 
-ENV PATH=$PATH:/x-tools/s390x-ibm-linux-gnu/bin
+USER root
+
+RUN curl -o /usr/local/bin/sccache \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
+      chmod +x /usr/local/bin/sccache
+
+ENV PATH=$PATH:/x-tools/s390x-ibm-linux-gnu/bin:/x-tools/x86_64-unknown-netbsd/bin
 
 ENV \
-    AR_x86_64_unknown_netbsd=x86_64-unknown-netbsd-ar \
-    CC_x86_64_unknown_netbsd=x86_64-unknown-netbsd-gcc \
-    CXX_x86_64_unknown_netbsd=x86_64-unknown-netbsd-g++ \
+    AR_x86_64_unknown_netbsd=x86_64--netbsd-ar \
+    CC_x86_64_unknown_netbsd=x86_64--netbsd-gcc-sysroot \
+    CXX_x86_64_unknown_netbsd=x86_64--netbsd-g++-sysroot \
     CC_s390x_unknown_linux_gnu=s390x-ibm-linux-gnu-gcc \
     AR_s390x_unknown_linux_gnu=s390x-ibm-linux-gnu-ar \
     CXX_s390x_unknown_linux_gnu=s390x-ibm-linux-gnu-g++
diff --git a/src/ci/docker/dist-s390x-linux-netbsd/build-netbsd-toolchain.sh b/src/ci/docker/dist-s390x-linux-netbsd/build-netbsd-toolchain.sh
index 654b458ea40..ea335a24973 100755
--- a/src/ci/docker/dist-s390x-linux-netbsd/build-netbsd-toolchain.sh
+++ b/src/ci/docker/dist-s390x-linux-netbsd/build-netbsd-toolchain.sh
@@ -13,108 +13,71 @@
 
 set -ex
 
-BINUTILS=2.25.1
-GCC=5.3.0
-
-# First up, build binutils
-mkdir binutils
-cd binutils
-curl https://ftp.gnu.org/gnu/binutils/binutils-$BINUTILS.tar.bz2 | tar xjf -
-mkdir binutils-build
-cd binutils-build
-../binutils-$BINUTILS/configure \
-  --target=x86_64-unknown-netbsd
-make -j10
-make install
-cd ../..
-rm -rf binutils
+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
+}
 
-# Next, download the NetBSD libc and relevant header files
 mkdir netbsd
-# originally from:
-# https://ftp.netbsd.org/pub/NetBSD/NetBSD-7.0/amd64/binary/sets/base.tgz
-curl https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-01-16-netbsd-base.tgz | \
-  tar xzf - -C netbsd ./usr/include ./usr/lib ./lib
-# originally from:
-# https://ftp.netbsd.org/pub/NetBSD/NetBSD-7.0/amd64/binary/sets/comp.tgz
-curl https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-01-16-netbsd-comp.tgz | \
-  tar xzf - -C netbsd ./usr/include ./usr/lib
-
-dst=/usr/local/x86_64-unknown-netbsd
-cp -r netbsd/usr/include $dst
-cp netbsd/usr/lib/crt0.o $dst/lib
-cp netbsd/usr/lib/crti.o $dst/lib
-cp netbsd/usr/lib/crtn.o $dst/lib
-cp netbsd/usr/lib/crtbeginS.o $dst/lib
-cp netbsd/usr/lib/crtendS.o $dst/lib
-cp netbsd/usr/lib/crtbegin.o $dst/lib
-cp netbsd/usr/lib/crtend.o $dst/lib
-cp netbsd/usr/lib/gcrt0.o $dst/lib
-cp netbsd/usr/lib/libc.a $dst/lib
-cp netbsd/usr/lib/libc_p.a $dst/lib
-cp netbsd/usr/lib/libc_pic.a $dst/lib
-cp netbsd/lib/libc.so.12.193.1 $dst/lib
-cp netbsd/lib/libutil.so.7.21 $dst/lib
-cp netbsd/usr/lib/libm.a $dst/lib
-cp netbsd/usr/lib/libm_p.a $dst/lib
-cp netbsd/usr/lib/libm_pic.a $dst/lib
-cp netbsd/lib/libm.so.0.11 $dst/lib
-cp netbsd/usr/lib/librt.so.1.1 $dst/lib
-cp netbsd/usr/lib/libpthread.a $dst/lib
-cp netbsd/usr/lib/libpthread_p.a $dst/lib
-cp netbsd/usr/lib/libpthread_pic.a $dst/lib
-cp netbsd/usr/lib/libpthread.so.1.2 $dst/lib
-
-ln -s libc.so.12.193.1 $dst/lib/libc.so
-ln -s libc.so.12.193.1 $dst/lib/libc.so.12
-ln -s libm.so.0.11 $dst/lib/libm.so
-ln -s libm.so.0.11 $dst/lib/libm.so.0
-ln -s libutil.so.7.21 $dst/lib/libutil.so
-ln -s libutil.so.7.21 $dst/lib/libutil.so.7
-ln -s libpthread.so.1.2 $dst/lib/libpthread.so
-ln -s libpthread.so.1.2 $dst/lib/libpthread.so.1
-ln -s librt.so.1.1 $dst/lib/librt.so
-
-rm -rf netbsd
-
-# Finally, download and build gcc to target NetBSD
-mkdir gcc
-cd gcc
-curl https://ftp.gnu.org/gnu/gcc/gcc-$GCC/gcc-$GCC.tar.bz2 | tar xjf -
-cd gcc-$GCC
-./contrib/download_prerequisites
-
-# Originally from
-# ftp://ftp.netbsd.org/pub/pkgsrc/pkgsrc-2016Q4/pkgsrc/lang/gcc5/patches/patch-libstdc%2B%2B-v3_config_os_bsd_netbsd_ctype__base.h
-PATCHES="https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-01-13-netbsd-patch1.patch"
-
-# Originally from
-# ftp://ftp.netbsd.org/pub/pkgsrc/pkgsrc-2016Q4/pkgsrc/lang/gcc5/patches/patch-libstdc%2B%2B-v3_config_os_bsd_netbsd_ctype__configure__char.cc
-PATCHES="$PATCHES https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-01-13-netbsd-patch2.patch"
-
-for patch in $PATCHES; do
-  curl $patch | patch -Np0
-done
-
-mkdir ../gcc-build
-cd ../gcc-build
-../gcc-$GCC/configure                            \
-  --enable-languages=c,c++                       \
-  --target=x86_64-unknown-netbsd                 \
-  --disable-libcilkrts                           \
-  --disable-multilib                             \
-  --disable-nls                                  \
-  --disable-libgomp                              \
-  --disable-libquadmath                          \
-  --disable-libssp                               \
-  --disable-libvtv                               \
-  --disable-libcilkrt                            \
-  --disable-libada                               \
-  --disable-libsanitizer                         \
-  --disable-libquadmath-support                  \
-  --disable-lto
-make -j10
-make install
+cd netbsd
+
+mkdir -p /x-tools/x86_64-unknown-netbsd/sysroot
+
+URL=https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror
+
+# Originally from ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-$BSD/source/sets/*.tgz
+curl $URL/2017-03-17-netbsd-src.tgz | tar xzf -
+curl $URL/2017-03-17-netbsd-gnusrc.tgz | tar xzf -
+curl $URL/2017-03-17-netbsd-sharesrc.tgz | tar xzf -
+curl $URL/2017-03-17-netbsd-syssrc.tgz | tar xzf -
+
+# Originally from ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-$BSD/amd64/binary/sets/*.tgz
+curl $URL/2017-03-17-netbsd-base.tgz | \
+  tar xzf - -C /x-tools/x86_64-unknown-netbsd/sysroot ./usr/include ./usr/lib ./lib
+curl $URL/2017-03-17-netbsd-comp.tgz | \
+  tar xzf - -C /x-tools/x86_64-unknown-netbsd/sysroot ./usr/include ./usr/lib
+
+cd usr/src
+
+# The options, in order, do the following
+# * this is an unpriviledged build
+# * output to a predictable location
+# * disable various uneeded stuff
+MKUNPRIVED=yes TOOLDIR=/x-tools/x86_64-unknown-netbsd \
+MKSHARE=no MKDOC=no MKHTML=no MKINFO=no MKKMOD=no MKLINT=no MKMAN=no MKNLS=no MKPROFILE=no \
+hide_output ./build.sh -j10 -m amd64 tools
 
 cd ../..
-rm -rf gcc
+
+rm -rf usr
+
+cat > /x-tools/x86_64-unknown-netbsd/bin/x86_64--netbsd-gcc-sysroot <<'EOF'
+#!/bin/bash
+exec /x-tools/x86_64-unknown-netbsd/bin/x86_64--netbsd-gcc --sysroot=/x-tools/x86_64-unknown-netbsd/sysroot "$@"
+EOF
+
+cat > /x-tools/x86_64-unknown-netbsd/bin/x86_64--netbsd-g++-sysroot <<'EOF'
+#!/bin/bash
+exec /x-tools/x86_64-unknown-netbsd/bin/x86_64--netbsd-g++ --sysroot=/x-tools/x86_64-unknown-netbsd/sysroot "$@"
+EOF
+
+GCC_SHA1=`sha1sum -b /x-tools/x86_64-unknown-netbsd/bin/x86_64--netbsd-gcc | cut -d' ' -f1`
+GPP_SHA1=`sha1sum -b /x-tools/x86_64-unknown-netbsd/bin/x86_64--netbsd-g++ | cut -d' ' -f1`
+
+echo "# $GCC_SHA1" >> /x-tools/x86_64-unknown-netbsd/bin/x86_64--netbsd-gcc-sysroot
+echo "# $GPP_SHA1" >> /x-tools/x86_64-unknown-netbsd/bin/x86_64--netbsd-g++-sysroot
+
+chmod +x /x-tools/x86_64-unknown-netbsd/bin/x86_64--netbsd-gcc-sysroot
+chmod +x /x-tools/x86_64-unknown-netbsd/bin/x86_64--netbsd-g++-sysroot
diff --git a/src/ci/docker/dist-x86-linux/Dockerfile b/src/ci/docker/dist-x86-linux/Dockerfile
index 852ce1806ec..18c7a4d2b3e 100644
--- a/src/ci/docker/dist-x86-linux/Dockerfile
+++ b/src/ci/docker/dist-x86-linux/Dockerfile
@@ -6,6 +6,7 @@ RUN yum upgrade -y && yum install -y \
       curl \
       bzip2 \
       gcc \
+      gcc-c++ \
       make \
       glibc-devel \
       perl \
@@ -75,7 +76,7 @@ RUN curl -Lo /rustroot/dumb-init \
 ENTRYPOINT ["/rustroot/dumb-init", "--"]
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 ENV HOSTS=i686-unknown-linux-gnu
diff --git a/src/ci/docker/dist-x86-linux/build-gcc.sh b/src/ci/docker/dist-x86-linux/build-gcc.sh
index 06198eb0c97..ab2562538d6 100755
--- a/src/ci/docker/dist-x86-linux/build-gcc.sh
+++ b/src/ci/docker/dist-x86-linux/build-gcc.sh
@@ -13,12 +13,14 @@ set -ex
 
 source shared.sh
 
-curl https://ftp.gnu.org/gnu/gcc/gcc-4.7.4/gcc-4.7.4.tar.bz2 | tar xjf -
-cd gcc-4.7.4
+GCC=4.8.5
+
+curl https://ftp.gnu.org/gnu/gcc/gcc-$GCC/gcc-$GCC.tar.bz2 | tar xjf -
+cd gcc-$GCC
 ./contrib/download_prerequisites
 mkdir ../gcc-build
 cd ../gcc-build
-hide_output ../gcc-4.7.4/configure \
+hide_output ../gcc-$GCC/configure \
     --prefix=/rustroot \
     --enable-languages=c,c++
 hide_output make -j10
@@ -27,5 +29,5 @@ ln -nsf gcc /rustroot/bin/cc
 
 cd ..
 rm -rf gcc-build
-rm -rf gcc-4.7.4
-yum erase -y gcc binutils
+rm -rf gcc-$GCC
+yum erase -y gcc gcc-c++ binutils
diff --git a/src/ci/docker/dist-x86_64-musl/Dockerfile b/src/ci/docker/dist-x86_64-musl/Dockerfile
index 151552331c8..085aa351659 100644
--- a/src/ci/docker/dist-x86_64-musl/Dockerfile
+++ b/src/ci/docker/dist-x86_64-musl/Dockerfile
@@ -26,7 +26,7 @@ RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-ini
 ENTRYPOINT ["/usr/bin/dumb-init", "--"]
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 ENV RUST_CONFIGURE_ARGS \
diff --git a/src/ci/docker/emscripten/Dockerfile b/src/ci/docker/emscripten/Dockerfile
index e8eb151a078..77cf54a19a7 100644
--- a/src/ci/docker/emscripten/Dockerfile
+++ b/src/ci/docker/emscripten/Dockerfile
@@ -15,7 +15,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   lib32stdc++6
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
diff --git a/src/ci/docker/emscripten/build-emscripten.sh b/src/ci/docker/emscripten/build-emscripten.sh
index 88bf583007c..e39767357ad 100755
--- a/src/ci/docker/emscripten/build-emscripten.sh
+++ b/src/ci/docker/emscripten/build-emscripten.sh
@@ -29,7 +29,24 @@ exit 1
 }
 
 curl https://s3.amazonaws.com/mozilla-games/emscripten/releases/emsdk-portable.tar.gz | \
-      tar xzf -
+    tar xzf -
+
+# Some versions of the EMSDK archive have their contents in .emsdk-portable
+# and others in emsdk_portable. Make sure the EMSDK ends up in a fixed path.
+if [ -d emsdk-portable ]; then
+    mv emsdk-portable emsdk_portable
+fi
+
+if [ ! -d emsdk_portable ]; then
+    echo "ERROR: Invalid emsdk archive. Dumping working directory." >&2
+    ls -l
+    exit 1
+fi
+
+# Some versions of the EMSDK set the permissions of the root directory to
+# 0700. Ensure the directory is readable by all users.
+chmod 755 emsdk_portable
+
 source emsdk_portable/emsdk_env.sh
 hide_output emsdk update
 hide_output emsdk install --build=Release sdk-tag-1.37.1-32bit
diff --git a/src/ci/docker/i686-gnu-nopt/Dockerfile b/src/ci/docker/i686-gnu-nopt/Dockerfile
index aca4bfb546d..c84cf56e4e8 100644
--- a/src/ci/docker/i686-gnu-nopt/Dockerfile
+++ b/src/ci/docker/i686-gnu-nopt/Dockerfile
@@ -14,7 +14,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   xz-utils
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
diff --git a/src/ci/docker/i686-gnu/Dockerfile b/src/ci/docker/i686-gnu/Dockerfile
index 2664307b09b..f4bb9083b85 100644
--- a/src/ci/docker/i686-gnu/Dockerfile
+++ b/src/ci/docker/i686-gnu/Dockerfile
@@ -14,7 +14,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   xz-utils
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
diff --git a/src/ci/docker/run.sh b/src/ci/docker/run.sh
index c418d427b15..71a4bfae3ca 100755
--- a/src/ci/docker/run.sh
+++ b/src/ci/docker/run.sh
@@ -57,6 +57,7 @@ exec docker \
   --env DEPLOY_ALT=$DEPLOY_ALT \
   --env LOCAL_USER_ID=`id -u` \
   --volume "$HOME/.cargo:/cargo" \
+  --volume "$HOME/rustsrc:$HOME/rustsrc" \
   --privileged \
   --rm \
   rust-ci \
diff --git a/src/ci/docker/x86_64-gnu-aux/Dockerfile b/src/ci/docker/x86_64-gnu-aux/Dockerfile
index fdc8221ad25..68184c65cf1 100644
--- a/src/ci/docker/x86_64-gnu-aux/Dockerfile
+++ b/src/ci/docker/x86_64-gnu-aux/Dockerfile
@@ -15,7 +15,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   pkg-config
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
diff --git a/src/ci/docker/x86_64-gnu-debug/Dockerfile b/src/ci/docker/x86_64-gnu-debug/Dockerfile
index dae7fac3890..6320a806fc3 100644
--- a/src/ci/docker/x86_64-gnu-debug/Dockerfile
+++ b/src/ci/docker/x86_64-gnu-debug/Dockerfile
@@ -14,7 +14,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   xz-utils
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
diff --git a/src/ci/docker/x86_64-gnu-distcheck/Dockerfile b/src/ci/docker/x86_64-gnu-distcheck/Dockerfile
index 05ff4847ecc..180f53ec33f 100644
--- a/src/ci/docker/x86_64-gnu-distcheck/Dockerfile
+++ b/src/ci/docker/x86_64-gnu-distcheck/Dockerfile
@@ -16,7 +16,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   pkg-config
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
diff --git a/src/ci/docker/x86_64-gnu-full-bootstrap/Dockerfile b/src/ci/docker/x86_64-gnu-full-bootstrap/Dockerfile
index 176b1f0a857..4500fc0f642 100644
--- a/src/ci/docker/x86_64-gnu-full-bootstrap/Dockerfile
+++ b/src/ci/docker/x86_64-gnu-full-bootstrap/Dockerfile
@@ -14,7 +14,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   xz-utils
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
diff --git a/src/ci/docker/x86_64-gnu-incremental/Dockerfile b/src/ci/docker/x86_64-gnu-incremental/Dockerfile
index 216b2d9a656..ad1227fa581 100644
--- a/src/ci/docker/x86_64-gnu-incremental/Dockerfile
+++ b/src/ci/docker/x86_64-gnu-incremental/Dockerfile
@@ -14,7 +14,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   xz-utils
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
diff --git a/src/ci/docker/x86_64-gnu-llvm-3.7/Dockerfile b/src/ci/docker/x86_64-gnu-llvm-3.7/Dockerfile
index d91e05e2b2d..f1240201805 100644
--- a/src/ci/docker/x86_64-gnu-llvm-3.7/Dockerfile
+++ b/src/ci/docker/x86_64-gnu-llvm-3.7/Dockerfile
@@ -17,7 +17,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   xz-utils
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
diff --git a/src/ci/docker/x86_64-gnu-nopt/Dockerfile b/src/ci/docker/x86_64-gnu-nopt/Dockerfile
index d79b07efab5..fa9707d1a73 100644
--- a/src/ci/docker/x86_64-gnu-nopt/Dockerfile
+++ b/src/ci/docker/x86_64-gnu-nopt/Dockerfile
@@ -14,7 +14,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   xz-utils
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
diff --git a/src/ci/docker/x86_64-gnu/Dockerfile b/src/ci/docker/x86_64-gnu/Dockerfile
index 71ed9ab943a..e5d89034dbe 100644
--- a/src/ci/docker/x86_64-gnu/Dockerfile
+++ b/src/ci/docker/x86_64-gnu/Dockerfile
@@ -14,7 +14,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   xz-utils
 
 RUN curl -o /usr/local/bin/sccache \
-      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-unknown-linux-musl && \
+      https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-unknown-linux-musl && \
       chmod +x /usr/local/bin/sccache
 
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
diff --git a/src/ci/init_repo.sh b/src/ci/init_repo.sh
new file mode 100755
index 00000000000..4e22907d979
--- /dev/null
+++ b/src/ci/init_repo.sh
@@ -0,0 +1,71 @@
+#!/bin/bash
+# Copyright 2016 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.
+
+set -o errexit
+set -o pipefail
+set -o nounset
+
+set -o xtrace
+
+ci_dir=$(cd $(dirname $0) && pwd)
+. "$ci_dir/shared.sh"
+
+REPO_DIR="$1"
+CACHE_DIR="$2"
+
+cache_src_dir="$CACHE_DIR/src"
+# If the layout of the cache directory changes, bump the number here
+# (and anywhere else this file is referenced) so the cache is wiped
+cache_valid_file="$CACHE_DIR/cache_valid1"
+
+if [ ! -d "$REPO_DIR" -o ! -d "$REPO_DIR/.git" ]; then
+    echo "Error: $REPO_DIR does not exist or is not a git repo"
+    exit 1
+fi
+cd $REPO_DIR
+if [ ! -d "$CACHE_DIR" ]; then
+    echo "Error: $CACHE_DIR does not exist or is not an absolute path"
+    exit 1
+fi
+
+# Wipe the cache if it's not valid, or mark it as invalid while we update it
+if [ ! -f "$cache_valid_file" ]; then
+    rm -rf "$CACHE_DIR" && mkdir "$CACHE_DIR"
+else
+    rm "$cache_valid_file"
+fi
+
+# Update the cache (a pristine copy of the rust source master)
+if [ ! -d "$cache_src_dir/.git" ]; then
+    retry sh -c "rm -rf $cache_src_dir && mkdir -p $cache_src_dir && \
+        git clone https://github.com/rust-lang/rust.git $cache_src_dir"
+fi
+retry sh -c "cd $cache_src_dir && git reset --hard && git pull"
+retry sh -c "cd $cache_src_dir && \
+    git submodule deinit -f . && git submodule sync && git submodule update --init"
+
+# Cache was updated without errors, mark it as valid
+touch "$cache_valid_file"
+
+# Update the submodules of the repo we're in, using the pristine repo as
+# a cache for any object files
+# No, `git submodule foreach` won't work:
+# http://stackoverflow.com/questions/12641469/list-submodules-in-a-git-repository
+modules="$(git config --file .gitmodules --get-regexp '\.path$' | cut -d' ' -f2)"
+for module in $modules; do
+    if [ ! -d "$cache_src_dir/$module" ]; then
+        echo "WARNING: $module not found in pristine repo"
+        retry sh -c "git submodule deinit -f $module && git submodule update --init $module"
+        continue
+    fi
+    retry sh -c "git submodule deinit -f $module && \
+        git submodule update --init --reference $cache_src_dir/$module $module"
+done
diff --git a/src/ci/run.sh b/src/ci/run.sh
index d8b317a46c3..6c6a49ada15 100755
--- a/src/ci/run.sh
+++ b/src/ci/run.sh
@@ -24,7 +24,6 @@ ci_dir=`cd $(dirname $0) && pwd`
 source "$ci_dir/shared.sh"
 
 RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --enable-sccache"
-RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --enable-quiet-tests"
 RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --disable-manage-submodules"
 RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --enable-locked-deps"
 RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --enable-cargo-openssl-static"
diff --git a/src/ci/shared.sh b/src/ci/shared.sh
index ecd9b7e98a4..f2e13fc73ae 100644
--- a/src/ci/shared.sh
+++ b/src/ci/shared.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/false
 # Copyright 2016 The Rust Project Developers. See the COPYRIGHT
 # file at the top-level directory of this distribution and at
 # http://rust-lang.org/COPYRIGHT.
@@ -9,13 +9,16 @@
 # option. This file may not be copied, modified, or distributed
 # except according to those terms.
 
+# This file is intended to be sourced with `. shared.sh` or
+# `source shared.sh`, hence the invalid shebang and not being
+# marked as an executable file in git.
+
 # See http://unix.stackexchange.com/questions/82598
 function retry {
+  echo "Attempting with retry:" "$@"
   local n=1
   local max=5
-  local delay=15
   while true; do
-    echo "Attempting:" "$@"
     "$@" && break || {
       if [[ $n -lt $max ]]; then
         ((n++))