Give 1.5G instead of 1.0G to sbt

Author: smarter

.drone.yml

@@ -5,7 +5,7 @@ pipeline:
     commands:
       - ln -s /var/cache/drone/scala-scala scala-scala
       - ./scripts/update-scala-library
-      - sbt -Ddotty.drone.mem=4096m -ivy /var/cache/drone/ivy2 "${TEST}"
+      - sbt -J-Xmx1536m -Ddotty.drone.mem=4096m -ivy /var/cache/drone/ivy2 "${TEST}"
 
 matrix:
   TEST: