Test Docker image

Author: wilzbach

.circleci/config.yml

@@ -10,6 +10,10 @@ jobs:
         - dmd-1.x
     steps:
       - checkout
+      - run:
+          # this is needed to "fix" the Docker permission errors - see https://github.com/dlang/dmd/pull/7579
+          command: sudo ls -l /dlang/dmd-2.078.0/linux
+          name: Test Docker image
       - run:
           command: ./.circleci/run.sh setup-repos
           name: Clone DRuntime & Phobos