Fixing compilation on stable

util/network/src/node_table.rs

@@ -357,6 +357,8 @@ pub fn is_valid_node_url(url: &str) -> bool {
 #[cfg(test)]
 mod tests {
 	use super::*;
+	use std::net::{SocketAddr, SocketAddrV4, Ipv4Addr};
+	use util::H512;
 	use std::str::FromStr;
 	use devtools::*;
 	use AllowIP;