error: Consistently use Display instead of error description()

The description method is deprecated and its signature forces less
helpful error messages than what Display can provide.

BUG=none
TEST=cargo check --all-features
TEST=cargo check --target aarch64-unknown-linux-gnu

Change-Id: I27fc99d59d0ef457c5273dc53e4c563ef439c2c0
Reviewed-on: https://chromium-review.googlesource.com/1497735
Commit-Ready: David Tolnay <dtolnay@chromium.org>
Tested-by: David Tolnay <dtolnay@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/sync/src/mutex.rs b/sync/src/mutex.rs
index 59c9f71..c479a2e 100644
--- a/sync/src/mutex.rs
+++ b/sync/src/mutex.rs
@@ -24,7 +24,6 @@
 //! Developers should feel free to use sync::Mutex anywhere in crosvm that they
 //! would otherwise be using std::sync::Mutex.
 
-use std::error::Error;
 use std::fmt::{self, Debug, Display};
 use std::sync::{Mutex as StdMutex, MutexGuard, TryLockError};
 
@@ -119,4 +118,4 @@ impl Display for WouldBlock {
     }
 }
 
-impl Error for WouldBlock {}
+impl std::error::Error for WouldBlock {}