Add apt cache again.

.travis.yml

@@ -6,8 +6,12 @@ cache:
   ccache: true
   directories:
   - $HOME/.ccache
+  - $HOME/.cache/apt
 
 before_install:
+  - mkdir -p $HOME/.cache/apt/partial
+  - sudo rm -rf /var/cache/apt/archives
+  - sudo ln -s $HOME/.cache/apt /var/cache/apt/archives
   - sudo add-apt-repository ppa:beineri/opt-qt-5.11.1-xenial -y
   - sudo apt-get update 
 

scripts/build-mpv.sh

@@ -6,7 +6,6 @@ export CFLAGS="-fPIC -Os"
 export CCACHE_SLOPPINESS=time_macros 
 export CCACHE=`which ccache`
 
-
 git clone --depth 1 https://github.com/mpv-player/mpv-build mpv-build || true
 cd mpv-build