Some cleanup.

tokio-rs · Apr 9, 2019 · b38896d · b38896d
1 parent beb6873
commit b38896d
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diff --git a/src/rt/arena.rs b/src/rt/arena.rs
@@ -10,6 +10,7 @@ use std::ptr;
 use std::rc::Rc;
 use std::slice;
 
+#[cfg(feature = "checkpoint")]
 use serde::{Serialize, Serializer};
 
 #[derive(Debug)]

diff --git a/src/rt/vv.rs b/src/rt/vv.rs
@@ -4,6 +4,7 @@ use rt::thread;
 use std::cmp;
 use std::ops;
 
+#[cfg(feature = "checkpoint")]
 use serde::{Deserialize, Deserializer};
 
 #[derive(Clone, Debug, PartialOrd, Eq, PartialEq)]