circle: docker 1.10.0

circle.yml

@@ -5,6 +5,10 @@ machine:
   hosts:
     circlehost: 127.0.0.1
     localhost: 127.0.0.1
+  pre:
+    - curl -sSL https://s3.amazonaws.com/circle-downloads/install-circleci-docker.sh | bash -s -- 1.10.0
+  services:
+    - docker
 
 checkout:
   post:
@@ -16,8 +20,6 @@ checkout:
 
 dependencies:
   override:
-    - sudo curl -sSL -o /usr/bin/docker http://s3-external-1.amazonaws.com/circle-downloads/docker-1.9.1-circleci; sudo chmod 0755 /usr/bin/docker
-    - sudo service docker start
     - go version
     - docker version