4 files changed, 6 insertions, 6 deletions
diff --git a/src/libstd/ffi/c_str.rs b/src/libstd/ffi/c_str.rs
index 1c449712e1f..28081367ced 100644
--- a/src/libstd/ffi/c_str.rs
+++ b/src/libstd/ffi/c_str.rs
@@ -146,19 +146,19 @@ pub struct CStr {
 
 /// An error returned from `CString::new` to indicate that a nul byte was found
 /// in the vector provided.
-#[derive(Clone, PartialEq, Debug)]
+#[derive(Clone, PartialEq, Eq, Debug)]
 #[stable(feature = "rust1", since = "1.0.0")]
 pub struct NulError(usize, Vec<u8>);
 
 /// An error returned from `CStr::from_bytes_with_nul` to indicate that a nul
 /// byte was found too early in the slice provided or one wasn't found at all.
-#[derive(Clone, PartialEq, Debug)]
+#[derive(Clone, PartialEq, Eq, Debug)]
 #[stable(feature = "cstr_from_bytes", since = "1.10.0")]
 pub struct FromBytesWithNulError { _a: () }
 
 /// An error returned from `CString::into_string` to indicate that a UTF-8 error
 /// was encountered during the conversion.
-#[derive(Clone, PartialEq, Debug)]
+#[derive(Clone, PartialEq, Eq, Debug)]
 #[stable(feature = "cstring_into", since = "1.7.0")]
 pub struct IntoStringError {
     inner: CString,
diff --git a/src/libstd/net/mod.rs b/src/libstd/net/mod.rs
index 2a78afa85f7..ad2fe3c1c0d 100644
--- a/src/libstd/net/mod.rs
+++ b/src/libstd/net/mod.rs
@@ -38,7 +38,7 @@ mod parser;
 ///
 /// [`shutdown`]: struct.TcpStream.html#method.shutdown
 /// [`TcpStream`]: struct.TcpStream.html
-#[derive(Copy, Clone, PartialEq, Debug)]
+#[derive(Copy, Clone, PartialEq, Eq, Debug)]
 #[stable(feature = "rust1", since = "1.0.0")]
 pub enum Shutdown {
     /// Indicates that the reading portion of this stream/socket should be shut
diff --git a/src/libstd/net/parser.rs b/src/libstd/net/parser.rs
index 854d87c4cbe..ed4af471f2f 100644
--- a/src/libstd/net/parser.rs
+++ b/src/libstd/net/parser.rs
@@ -370,7 +370,7 @@ impl FromStr for SocketAddr {
 
 /// An error returned when parsing an IP address or a socket address.
 #[stable(feature = "rust1", since = "1.0.0")]
-#[derive(Debug, Clone, PartialEq)]
+#[derive(Debug, Clone, PartialEq, Eq)]
 pub struct AddrParseError(());
 
 #[stable(feature = "addr_parse_error_error", since = "1.4.0")]
diff --git a/src/libstd/sync/mpsc/select.rs b/src/libstd/sync/mpsc/select.rs
index 677544d335e..51b08bd75c4 100644
--- a/src/libstd/sync/mpsc/select.rs
+++ b/src/libstd/sync/mpsc/select.rs
@@ -103,7 +103,7 @@ pub struct Handle<'rx, T:Send+'rx> {
 struct Packets { cur: *mut Handle<'static, ()> }
 
 #[doc(hidden)]
-#[derive(PartialEq)]
+#[derive(PartialEq, Eq)]
 pub enum StartResult {
     Installed,
     Abort,