Try cross compiling

#!/bin/bash

set -e

if [ $TRAVIS_OS_NAME -eq "osx" ]; then

if [ $TRAVIS_OS_NAME == "osx" ]; then

    exit 0

fi

if [ $TARGET != "" ]; then

    FLAGS="os/compiler=$TARGET-"

fi

mkdir /tmp/openssl

cd /tmp/openssl

curl https://openssl.org/source/openssl-1.0.2e.tar.gz | tar --strip-components=1 -xzf -

./config --prefix=$HOME/openssl shared

./config --prefix=$HOME/openssl shared $FLAGS

make

make install

#!/bin/bash

set -e

MAIN_TARGETS=https://static.rust-lang.org/dist

if [ $TEST_FEATURES == "true" ]; then

    FEATURES="tlsv1_2 tlsv1_1 dtlsv1 dtlsv1_2 sslv2 sslv3 aes_xts aes_ctr npn alpn rfc5114 ecdh_auto pkcs5_pbkdf2_hmac"

fi

    export LD_LIBRARY_PATH=$HOME/openssl/lib:$LD_LIBRARY_PATH

fi

cargo test --manifest-path=openssl/Cargo.toml --features "$FEATURES"

if [ $TARGET != "" ]; then

    FLAGS="--target=$TARGET"

    COMMAND="build"

    # Download the rustlib folder from the relevant portion of main distribution's

    # tarballs.

    dir=rust-std-$TARGET

    pkg=rust-std

    curl -s $MAIN_TARGETS/$pkg-$TRAVIS_RUST_VERSION-$TARGET.tar.gz | \

      tar xzf - -C $HOME/rust/lib/rustlib --strip-components=4 \

        $pkg-$TRAVIS_RUST_VERSION-$TARGET/$dir/lib/rustlib/$TARGET

else

    COMMAND="test"

fi

cargo $COMMAND --manifest-path=openssl/Cargo.toml $FLAGS --features "$FEATURES"