diff --git a/libs/autofile/cmd/logjack.go b/libs/autofile/cmd/logjack.go
index aeb810252..17b482bed 100644
--- a/libs/autofile/cmd/logjack.go
+++ b/libs/autofile/cmd/logjack.go
@@ -13,7 +13,6 @@ import (
 )
 
 const Version = "0.0.1"
-const sleepSeconds = 1      // Every second
 const readBufferSize = 1024 // 1KB at a time
 
 // Parse command-line options
diff --git a/libs/bech32/bech32_test.go b/libs/bech32/bech32_test.go
index a2c6c83fb..830942061 100644
--- a/libs/bech32/bech32_test.go
+++ b/libs/bech32/bech32_test.go
@@ -25,7 +25,7 @@ func TestEncodeAndDecode(t *testing.T) {
 	if hrp != "shasum" {
 		t.Error("Invalid hrp")
 	}
-	if bytes.Compare(data, sum[:]) != 0 {
+	if !bytes.Equal(data, sum[:]) {
 		t.Error("Invalid decode")
 	}
 }
diff --git a/libs/common/async.go b/libs/common/async.go
index 7be09a3c1..e3293ab4c 100644
--- a/libs/common/async.go
+++ b/libs/common/async.go
@@ -76,17 +76,15 @@ func (trs *TaskResultSet) Reap() *TaskResultSet {
 func (trs *TaskResultSet) Wait() *TaskResultSet {
 	for i := 0; i < len(trs.results); i++ {
 		var trch = trs.chz[i]
-		select {
-		case result, ok := <-trch:
-			if ok {
-				// Write result.
-				trs.results[i] = taskResultOK{
-					TaskResult: result,
-					OK:         true,
-				}
-			} else {
-				// We already wrote it.
+		result, ok := <-trch
+		if ok {
+			// Write result.
+			trs.results[i] = taskResultOK{
+				TaskResult: result,
+				OK:         true,
 			}
+		} else {
+			// We already wrote it.
 		}
 	}
 	return trs
diff --git a/libs/common/errors_test.go b/libs/common/errors_test.go
index 16aede225..52c78a765 100644
--- a/libs/common/errors_test.go
+++ b/libs/common/errors_test.go
@@ -17,10 +17,8 @@ func TestErrorPanic(t *testing.T) {
 			if r := recover(); r != nil {
 				err = ErrorWrap(r, "This is the message in ErrorWrap(r, message).")
 			}
-			return
 		}()
 		panic(pnk{"something"})
-		return nil
 	}
 
 	var err = capturePanic()
diff --git a/libs/db/debug_db.go b/libs/db/debug_db.go
index 4619a83dd..bb361a266 100644
--- a/libs/db/debug_db.go
+++ b/libs/db/debug_db.go
@@ -7,10 +7,6 @@ import (
 	cmn "github.com/tendermint/tendermint/libs/common"
 )
 
-func _fmt(f string, az ...interface{}) string {
-	return fmt.Sprintf(f, az...)
-}
-
 //----------------------------------------
 // debugDB