Merge pull request #7818 from wilzbach/circle2

Experiment with using only two CircleCi images

Author: WalterBright

.circleci/config.yml

@@ -4,7 +4,7 @@ jobs:
     working_directory: ~/dmd
     docker:
       - image: circleci/node:4.8.2
-    parallelism: 2
+    parallelism: 1
     steps:
       - checkout
       - run:

.circleci/run.sh

@@ -23,10 +23,7 @@ case "${CIRCLE_STAGE}" in
         ;;
     no_pic)
         PIC=0
-        case $CIRCLE_NODE_INDEX in
-            0) MODEL=64 ;;
-            1) MODEL=32 ;;
-        esac
+        MODEL=32
 esac
 
 # clone druntime and phobos