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-rw-r--r--src/librustc_driver/driver.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/librustc_driver/driver.rs b/src/librustc_driver/driver.rs
index 437b0257a97..f3d76a8f12f 100644
--- a/src/librustc_driver/driver.rs
+++ b/src/librustc_driver/driver.rs
@@ -682,7 +682,7 @@ pub fn collect_crate_types(session: &Session,
         if base.len() == 0 {
             base.push(link::default_output_for_target(session));
         }
-        base.as_mut_slice().sort();
+        base.sort();
         base.dedup();
     }