3 files changed, 3 insertions, 3 deletions
diff --git a/src/libstd/net/parser.rs b/src/libstd/net/parser.rs
index ae5037cc44e..234c5618a06 100644
--- a/src/libstd/net/parser.rs
+++ b/src/libstd/net/parser.rs
@@ -61,7 +61,7 @@ impl<'a> Parser<'a> {
     }
 
     // Return result of first successful parser
-    fn read_or<T>(&mut self, parsers: &mut [Box<FnMut(&mut Parser) -> Option<T> + 'static>])
+    fn read_or<T>(&mut self, parsers: &mut [Box<dyn FnMut(&mut Parser) -> Option<T> + 'static>])
                -> Option<T> {
         for pf in parsers {
             if let Some(r) = self.read_atomically(|p: &mut Parser| pf(p)) {
diff --git a/src/libstd/net/tcp.rs b/src/libstd/net/tcp.rs
index 6b4bbdddf32..75c7a3d9280 100644
--- a/src/libstd/net/tcp.rs
+++ b/src/libstd/net/tcp.rs
@@ -927,7 +927,7 @@ mod tests {
     use time::{Instant, Duration};
     use thread;
 
-    fn each_ip(f: &mut FnMut(SocketAddr)) {
+    fn each_ip(f: &mut dyn FnMut(SocketAddr)) {
         f(next_test_ip4());
         f(next_test_ip6());
     }
diff --git a/src/libstd/net/udp.rs b/src/libstd/net/udp.rs
index d25e29999cb..0ebe3284b4f 100644
--- a/src/libstd/net/udp.rs
+++ b/src/libstd/net/udp.rs
@@ -826,7 +826,7 @@ mod tests {
     use time::{Instant, Duration};
     use thread;
 
-    fn each_ip(f: &mut FnMut(SocketAddr, SocketAddr)) {
+    fn each_ip(f: &mut dyn FnMut(SocketAddr, SocketAddr)) {
         f(next_test_ip4(), next_test_ip4());
         f(next_test_ip6(), next_test_ip6());
     }