diff --git a/.travis.yml b/.travis.yml
index 3b529232f..cd42eff8c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,12 +3,7 @@ jdk: oraclejdk8
 
 scala:
   - 2.11.12
-  - 2.12.4
-
-matrix:
-  include:
-  - scala: 2.12.4
-    jdk: oraclejdk9
+  - 2.12.6
 
 script: sbt -Dfile.encoding=UTF8 -J-XX:ReservedCodeCacheSize=256M
   ++$TRAVIS_SCALA_VERSION
@@ -17,6 +12,13 @@ script: sbt -Dfile.encoding=UTF8 -J-XX:ReservedCodeCacheSize=256M
   whitesourceCheckPolicies
   test
 
+matrix:
+  include:
+  - scala: 2.12.6
+    jdk: oraclejdk9
+  - scala: 2.10.6
+    script: sbt -Dfile.encoding=UTF8 -J-XX:ReservedCodeCacheSize=256M "++$TRAVIS_SCALA_VERSION compile"
+
 env:
   global:
     - secure: 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
diff --git a/build.sbt b/build.sbt
index 2d5976cea..58c1dcdc6 100644
--- a/build.sbt
+++ b/build.sbt
@@ -101,9 +101,12 @@ lazy val utilLogging = (project in internalPath / "util-logging")
     crossScalaVersions := Seq(scala210, scala211, scala212),
     name := "Util Logging",
     libraryDependencies ++=
-      Seq(jline, log4jApi, log4jCore, disruptor, sjsonnewScalaJson.value, scalaReflect.value,
-        compilerPlugin(silencerPlugin), silencerLib),
+      Seq(jline, log4jApi, log4jCore, disruptor, sjsonnewScalaJson.value, scalaReflect.value),
     libraryDependencies ++= Seq(scalaCheck, scalaTest),
+    libraryDependencies ++= (scalaVersion.value match {
+      case v if v.startsWith("2.12.") => List(compilerPlugin(silencerPlugin))
+      case _                          => List()
+    }),
     Compile / scalacOptions ++= (scalaVersion.value match {
       case v if v.startsWith("2.12.") => List("-Ywarn-unused:-locals,-explicits,-privates")
       case _                          => List()
diff --git a/internal/util-logging/src/main/scala/com/github/ghik/silencer/silent.scala b/internal/util-logging/src/main/scala/com/github/ghik/silencer/silent.scala
new file mode 100644
index 000000000..505099dfc
--- /dev/null
+++ b/internal/util-logging/src/main/scala/com/github/ghik/silencer/silent.scala
@@ -0,0 +1,10 @@
+package com.github.ghik.silencer
+
+import scala.annotation.Annotation
+
+/**
+ * When silencer compiler plugin is enabled, this annotation suppresses all warnings emitted by scalac for some portion
+ * of source code. It can be applied on any definition (`class`, def`, `val`, `var`, etc.) or on arbitrary expression,
+ * e.g. {123; 456}: @silent`
+ */
+class silent extends Annotation
diff --git a/internal/util-logging/src/main/scala/sbt/internal/util/BufferedLogger.scala b/internal/util-logging/src/main/scala/sbt/internal/util/BufferedLogger.scala
index b19fc2509..f1948b2f8 100644
--- a/internal/util-logging/src/main/scala/sbt/internal/util/BufferedLogger.scala
+++ b/internal/util-logging/src/main/scala/sbt/internal/util/BufferedLogger.scala
@@ -43,6 +43,7 @@ class BufferedAppender private[BufferedAppender] (name: String, delegate: Append
     if (recording) {
       buffer += event.toImmutable
     } else delegate.append(event)
+    ()
   }
 
   /** Enables buffering. */