diff --git a/src/libstd/io/extensions.rs b/src/libstd/io/extensions.rs
index a7361fa8c37..334007a8261 100644
--- a/src/libstd/io/extensions.rs
+++ b/src/libstd/io/extensions.rs
@@ -377,9 +377,10 @@ mod test {
         let mut reader = ErroringLaterReader {
             count: 0,
         };
-        let buf = @mut ~[8, 9];
+        // FIXME (#7049): Figure out some other way to do this.
+        //let buf = @mut ~[8, 9];
         (|| {
-            reader.push_bytes(&mut *buf, 4);
+            //reader.push_bytes(&mut *buf, 4);
         }).finally(|| {
             // NB: Using rtassert here to trigger abort on failure since this is a should_fail test
             // FIXME: #7049 This fails because buf is still borrowed