diff --git a/.gitignore b/.gitignore
index 36d52c4..4d02ba9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,4 +32,5 @@ libtrial.a
 xunit/
 trial_*.d
 trial-lifecycle
-trial-runner
\ No newline at end of file
+trial-runner
+trial-root
\ No newline at end of file
diff --git a/.travis.yml b/.travis.yml
index 0276aa3..ce0edbc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -35,4 +35,5 @@ matrix:
   allow_failures:
     - d: dmd-beta
     - d: ldc-beta
+
 script: ./travis-ci.sh
diff --git a/lifecycle/trial/discovery/unit.d b/lifecycle/trial/discovery/unit.d
index 7caeb25..cb728bf 100644
--- a/lifecycle/trial/discovery/unit.d
+++ b/lifecycle/trial/discovery/unit.d
@@ -252,14 +252,14 @@ class UnitTestDiscovery : ITestDiscovery {
 
 			enum key = "__un" ~ "ittestL";
 			enum len = key.length;
-			long line;
+			size_t line;
 
 			try {
 				auto postFix = name[len..$];
 				auto idx = postFix.indexOf("_");
 
 				if(idx != -1) {
-					line = postFix[0..idx].to!long;
+					line = postFix[0..idx].to!size_t;
 				}
 			} catch(Exception e) {
 				return SourceLocation();
diff --git a/lifecycle/trial/interfaces.d b/lifecycle/trial/interfaces.d
index 991483f..81c6ff0 100644
--- a/lifecycle/trial/interfaces.d
+++ b/lifecycle/trial/interfaces.d
@@ -127,7 +127,10 @@ struct Attachment {
     import trial.runner;
 
     auto a = const Attachment(name, path, name);
-    LifeCycleListeners.instance.attach(a);
+
+    if(LifeCycleListeners.instance !is null) {
+      LifeCycleListeners.instance.attach(a);
+    }
   }
 }
 
diff --git a/travis-ci.sh b/travis-ci.sh
index b9dd592..23135cd 100755
--- a/travis-ci.sh
+++ b/travis-ci.sh
@@ -3,7 +3,7 @@ set -e -x -o pipefail
 
 # test for successful 32-bit build
 if [ "$DC" == "dmd" ]; then
-	dub build :lifecycle --arch=x86
+	dub test :lifecycle --arch=x86
 	dub clean --all-packages
 fi