Fix parsing in sbt 1.3

Author: adpi2

sbt-plugin/build.sbt

@@ -13,7 +13,7 @@ inThisBuild(
     developers := Developers.all,
     version ~= { dynVer =>
       if (isRelease) dynVer
-      else "2.0.1" // only for local publishing
+      else "2.1.0-SNAPSHOT" // only for local publishing
     },
     // Scalafix settings
     semanticdbEnabled := true,

sbt-plugin/src/main/scala/ch/epfl/scala/SubmitDependencyGraph.scala

@@ -41,7 +41,7 @@ object SubmitDependencyGraph {
         .parseFromString(raw.mkString)
         .flatMap(Converter.fromJson[SubmitInput])
         .get
-    }
+    }.failOnException
 
   private def submit(state: State, input: SubmitInput): State = {
     checkGithubEnv() // fail fast if the Github CI environment is incomplete