Get CI working again

A few changes have necessitated some updates on our end

.travis.yml

@@ -4,8 +4,7 @@ dist: trusty
 services:
   - docker
 install:
-  - curl https://static.rust-lang.org/rustup.sh |
-    sh -s -- --add-target=$TARGET --disable-sudo -y --prefix=`rustc --print sysroot`
+  - if [ -z "$NO_ADD" ]; then rustup target add $TARGET; fi
 script:
   - cargo build
   - cargo build --no-default-features
@@ -24,26 +23,26 @@ matrix:
   include:
     # 1.0.0 compat
     - os: linux
-      env: TARGET=x86_64-unknown-linux-gnu
+      env: TARGET=x86_64-unknown-linux-gnu NO_ADD=1
       rust: 1.0.0
       script: cargo build
       install:
 
     # build documentation
     - os: linux
-      env: TARGET=x86_64-unknown-linux-gnu
+      env: TARGET=x86_64-unknown-linux-gnu NO_ADD=1
       rust: nightly
       script: sh ci/dox.sh
 
     # stable compat
     - os: linux
-      env: TARGET=x86_64-unknown-linux-gnu
+      env: TARGET=x86_64-unknown-linux-gnu NO_ADD=1
       rust: stable
     - os: linux
       env: TARGET=i686-unknown-linux-gnu
       rust: stable
     - os: osx
-      env: TARGET=x86_64-apple-darwin
+      env: TARGET=x86_64-apple-darwin NO_ADD=1
       rust: stable
     - os: osx
       env: TARGET=i686-apple-darwin
@@ -101,18 +100,18 @@ matrix:
 
     # beta
     - os: linux
-      env: TARGET=x86_64-unknown-linux-gnu
+      env: TARGET=x86_64-unknown-linux-gnu NO_ADD=1
       rust: beta
     - os: osx
-      env: TARGET=x86_64-apple-darwin
+      env: TARGET=x86_64-apple-darwin NO_ADD=1
       rust: beta
 
     # nightly
     - os: linux
-      env: TARGET=x86_64-unknown-linux-gnu
+      env: TARGET=x86_64-unknown-linux-gnu NO_ADD=1
       rust: nightly
     - os: osx
-      env: TARGET=x86_64-apple-darwin
+      env: TARGET=x86_64-apple-darwin NO_ADD=1
       rust: nightly
 
     # QEMU based targets that compile in an emulator

appveyor.yml

@@ -7,7 +7,7 @@ environment:
   - TARGET: x86_64-pc-windows-msvc
   - TARGET: i686-pc-windows-msvc
 install:
-  - curl -sSf -o rustup-init.exe https://win.rustup.rs/
+  - appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe
   - rustup-init.exe -y --default-host %TARGET%
   - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin
   - if defined MSYS2_BITS set PATH=%PATH%;C:\msys64\mingw%MSYS2_BITS%\bin