commit 4bf8b4675749f0f2cfc0a7e90398b0834635cc28
author Haibo Huang <hhb@google.com> Tue Nov 24 20:53:50 2020 -0800
committer Haibo Huang <hhb@google.com> Tue Nov 24 20:53:50 2020 -0800
tree 268f7e94ca5929b460ed2bea90c8ea92a44406f7
parent be9b5f6fe2ca321e62d784edd05e031d110cddab

Upgrade rust/crates/protobuf to 2.18.1

Test: make
Change-Id: I5b915568dd8c388d36820424b8c7986dfd33af3b

src/error.rs

diff --git a/src/error.rs b/src/error.rs
index 9e5a7e1..3f06909 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -112,7 +112,7 @@
         }
     }
 
-    fn cause(&self) -> Option<&Error> {
+    fn cause(&self) -> Option<&dyn Error> {
         match self {
             &ProtobufError::IoError(ref e) => Some(e),
             &ProtobufError::Utf8(ref e) => Some(e),