Merge pull request rust-lang#21 from bluss/32-bit

Fix 32-bit compile

Author: bluss

.travis.yml

@@ -5,6 +5,9 @@ matrix:
     - rust: stable
     - rust: beta
     - rust: nightly
+    - rust: nightly
+      env:
+       - FEATURES='test_low_transition_point'
 branches:
   only:
     - master

src/lib.rs

@@ -141,7 +141,7 @@ impl Pos {
             }
         } else {
             Pos {
-                index: (i | (lo32(hash.0 as u64) << 32)) as u64
+                index: i as u64 | ((hash.0 as u64) << 32)
             }
         }
     }