Fuzzing wrong targets

Author: dpc

Diff for: .travis.yml

@@ -14,11 +14,11 @@ addons:
 matrix:
   include:
     - rust: 1.20.0
-      env: DO_FUZZ=true
     - rust: nightly
     - rust: beta
       env: DO_FUZZ=true
     - rust: stable
+      env: DO_FUZZ=true
 script: |
   cargo build --verbose &&
   cargo test --verbose &&