Update OpenSSL download location

In rustbuild itself we download from our mirror but in the containers we don't
do this yet. The OpenSSL download url changes from time to time (it breaks when
they release a new version) so let's download from our mirror instead.

Author: alexcrichton

src/ci/docker/dist-i686-linux/build-openssl.sh

@@ -12,9 +12,10 @@
 set -ex
 source shared.sh
 
-VERSION=1.0.2j
+VERSION=1.0.2k
+URL=https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/openssl-$VERSION.tar.gz
 
-curl https://www.openssl.org/source/openssl-$VERSION.tar.gz | tar xzf -
+curl $URL | tar xzf -
 
 cd openssl-$VERSION
 hide_output ./config --prefix=/rustroot shared -fPIC

src/ci/docker/dist-x86_64-linux/build-openssl.sh

@@ -12,9 +12,10 @@
 set -ex
 source shared.sh
 
-VERSION=1.0.2j
+VERSION=1.0.2k
+URL=https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/openssl-$VERSION.tar.gz
 
-curl https://www.openssl.org/source/openssl-$VERSION.tar.gz | tar xzf -
+curl $URL | tar xzf -
 
 cd openssl-$VERSION
 hide_output ./config --prefix=/rustroot shared -fPIC