updated .travis.yml and appveyor.ml to build a little less configurations

.travis.yml

@@ -28,18 +28,18 @@ matrix:
     # WARNING Experimental target. Tests are executed using qemu user emulation, but this approach
     # may have problems when too many threads are spawned. Also, by the next Rust stable release,
     # this target will be replaced by `armv7-unknown-linux-gnueabihf`.
-    - os: linux
-      env: TARGET=arm-unknown-linux-gnueabihf
-      # Extra packages only for this build job
-      addons:
-        apt:
-          packages:
-            # Cross compiler and cross compiled C libraries
-            - gcc-arm-linux-gnueabihf
-            - libc6-armhf-cross
-            - libc6-dev-armhf-cross
-            # Emulator
-            - qemu-user
+    # - os: linux
+    #   env: TARGET=arm-unknown-linux-gnueabihf
+    #   # Extra packages only for this build job
+    #   addons:
+    #     apt:
+    #       packages:
+    #         # Cross compiler and cross compiled C libraries
+    #         - gcc-arm-linux-gnueabihf
+    #         - libc6-armhf-cross
+    #         - libc6-dev-armhf-cross
+    #         # Emulator
+    #         - qemu-user
     - os: linux
       env: TARGET=i686-unknown-linux-gnu
       addons:
@@ -49,8 +49,8 @@ matrix:
             - gcc-multilib
     - os: linux
       env: TARGET=x86_64-unknown-linux-gnu
-    - os: linux
-      env: TARGET=x86_64-unknown-linux-musl
+    # - os: linux
+    #   env: TARGET=x86_64-unknown-linux-musl
     - os: osx
       env: TARGET=i686-apple-darwin
     - os: osx

appveyor.yml

@@ -7,11 +7,11 @@ environment:
     RUST_VERSION: 1.6.0
   # TODO feel free to delete targets you are not interested in
   matrix:
-    - TARGET: i686-pc-windows-gnu
-      MSYS2_BITS: 32
+#    - TARGET: i686-pc-windows-gnu
+#      MSYS2_BITS: 32
     - TARGET: i686-pc-windows-msvc
-    - TARGET: x86_64-pc-windows-gnu
-      MSYS2_BITS: 64
+#    - TARGET: x86_64-pc-windows-gnu
+#      MSYS2_BITS: 64
     - TARGET: x86_64-pc-windows-msvc
 
 # Install Rust and Cargo