@@ -157,7 +157,7 @@ func makeTestContainer(c *check.C, options testContainerOptions) (containerID st

 		if status != 0 {

 			logs = "UNABLE TO GET LOGS"

 		}

-		c.Fatalf("failed to make test container, exit code (%d): %s", exitCode, logs)

+		c.Fatalf("failed to make test container, exit code (%s): %s", exitCode, logs)

 	}

 	return

@@ -409,11 +409,11 @@ func TestParseNetworkOptsNegativePorts(t *testing.T) {

 		t.Fail()

 	}

 	if len(ports) != 0 {

-		t.Logf("Expected nil got %s", len(ports))

+		t.Logf("Expected nil got %d", len(ports))

 		t.Fail()

 	}

 	if len(bindings) != 0 {

-		t.Logf("Expected 0 got %s", len(bindings))

+		t.Logf("Expected 0 got %d", len(bindings))

 		t.Fail()

 	}

 }