Fix tests, make Deserializer::visit take a value not a reference

serde2/benches/bench_log.rs

@@ -68,7 +68,7 @@ impl de::Deserialize for HttpProtocol {
     fn deserialize<
         S: Deserializer,
     >(state: &mut S) -> Result<HttpProtocol, S::Error> {
-        state.visit(&mut de::PrimitiveVisitor::new())
+        state.visit(de::PrimitiveVisitor::new())
     }
 }
 
@@ -116,7 +116,7 @@ impl de::Deserialize for HttpMethod {
     fn deserialize<
         S: de::Deserializer,
     >(state: &mut S) -> Result<HttpMethod, S::Error> {
-        state.visit(&mut de::PrimitiveVisitor::new())
+        state.visit(de::PrimitiveVisitor::new())
     }
 }
 
@@ -157,7 +157,7 @@ impl de::Deserialize for CacheStatus {
     fn deserialize<
         S: de::Deserializer,
     >(state: &mut S) -> Result<CacheStatus, S::Error> {
-        state.visit(&mut de::PrimitiveVisitor::new())
+        state.visit(de::PrimitiveVisitor::new())
     }
 }
 
@@ -207,7 +207,7 @@ impl de::Deserialize for OriginProtocol {
     fn deserialize<
         S: de::Deserializer,
     >(state: &mut S) -> Result<OriginProtocol, S::Error> {
-        state.visit(&mut de::PrimitiveVisitor::new())
+        state.visit(de::PrimitiveVisitor::new())
     }
 }
 
@@ -249,7 +249,7 @@ impl de::Deserialize for ZonePlan {
     fn deserialize<
         S: de::Deserializer,
     >(state: &mut S) -> Result<ZonePlan, S::Error> {
-        state.visit(&mut de::PrimitiveVisitor::new())
+        state.visit(de::PrimitiveVisitor::new())
     }
 }
 
@@ -542,7 +542,7 @@ impl de::Deserialize for Country {
     fn deserialize<
         S: de::Deserializer,
     >(state: &mut S) -> Result<Country, S::Error> {
-        state.visit(&mut de::PrimitiveVisitor::new())
+        state.visit(de::PrimitiveVisitor::new())
     }
 }