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-rw-r--r--library/proc_macro/src/bridge/rpc.rs1
-rw-r--r--library/proc_macro/src/lib.rs3
2 files changed, 2 insertions, 2 deletions
diff --git a/library/proc_macro/src/bridge/rpc.rs b/library/proc_macro/src/bridge/rpc.rs
index e9d7a46c0..5b1bfb309 100644
--- a/library/proc_macro/src/bridge/rpc.rs
+++ b/library/proc_macro/src/bridge/rpc.rs
@@ -1,7 +1,6 @@
//! Serialization for client-server communication.
use std::any::Any;
-use std::char;
use std::io::Write;
use std::num::NonZeroU32;
use std::str;
diff --git a/library/proc_macro/src/lib.rs b/library/proc_macro/src/lib.rs
index f0e4f5d8a..938935771 100644
--- a/library/proc_macro/src/lib.rs
+++ b/library/proc_macro/src/lib.rs
@@ -74,6 +74,7 @@ pub fn is_available() -> bool {
///
/// This is both the input and output of `#[proc_macro]`, `#[proc_macro_attribute]`
/// and `#[proc_macro_derive]` definitions.
+#[rustc_diagnostic_item = "TokenStream"]
#[stable(feature = "proc_macro_lib", since = "1.15.0")]
#[derive(Clone)]
pub struct TokenStream(Option<bridge::client::TokenStream>);
@@ -581,7 +582,7 @@ impl fmt::Debug for Span {
/// A line-column pair representing the start or end of a `Span`.
#[unstable(feature = "proc_macro_span", issue = "54725")]
-#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
pub struct LineColumn {
/// The 1-indexed line in the source file on which the span starts or ends (inclusive).
#[unstable(feature = "proc_macro_span", issue = "54725")]