Add error logs

build.sbt

@@ -16,7 +16,6 @@ lazy val root = project in file(".") aggregate dockerTask
 lazy val commonSettings = Seq(
   organization := "com.stacktoheap",
   version := appVersion,
-  scalaVersion := "2.10.4",
   unmanagedBase := file(".") / "lib",
   libraryDependencies ++= Seq(
     apacheCommons, commonsIo, goPluginLibrary, gson, junit, hamcrest, mockito

docker-task/src/main/java/com/stacktoheap/go/docker/DockerTaskExecutor.java

@@ -2,13 +2,17 @@
 
 import com.stacktoheap.go.docker.Commands.DockerCleanupCommand;
 import com.stacktoheap.go.docker.Commands.DockerTaskCommand;
+import com.thoughtworks.go.plugin.api.logging.Logger;
 
 public class DockerTaskExecutor {
+    Logger logger = Logger.getLoggerFor(DockerTask.class);
+
     public Result execute(Config config, Context context) {
         try {
             return runCommand(context, config);
-        } catch (Exception e) {
-            return new Result(false, "Failed while running the task", e);
+        } catch (Exception ex) {
+            logger.error("Error running the command", ex);
+            return new Result(false, "Failed while running the task", ex);
         }
     }
 
@@ -17,6 +21,7 @@ private Result runCommand(Context taskContext, Config taskConfig) throws Excepti
             new DockerTaskCommand(taskContext, taskConfig).run();
             return new Result(true, "Finished");
         } catch(Exception ex) {
+            logger.error("Error running the command", ex);
             return new Result(false, "Failed", ex);
         } finally {
             new DockerCleanupCommand(taskContext, taskConfig).run();