Replace fork := true with parallelExecution in Test := false

Serialize testing until compiler is threadsafe

Fix fork := true causing Travis to fail

1 files changed, 1 insertions, 1 deletions

diff --git a/build.sbt b/build.sbt
index e0571ccd..728887ec 100644
--- a/build.sbt
+++ b/build.sbt
@@ -36,4 +36,4 @@ antlr4GenListener in Antlr4 := false // default = true
 
 antlr4PackageName in Antlr4 := Option("firrtl.antlr")
 
-fork := true
+parallelExecution in Test := false