pypy2.7 6.0.0 (#4911)

.travis.yml

@@ -23,13 +23,13 @@ env:
 matrix:
   include:
   - python: '3.6'
-    env: TOXENV=pypy-unit PYPY_VERSION="pypy2.7-5.8.0"
+    env: TOXENV=pypy-unit PYPY_VERSION="pypy2.7-6.0.0"
   - python: '3.6'
-    env: TOXENV=pypy-integration-rabbitmq PYPY_VERSION="pypy2.7-5.8.0"
+    env: TOXENV=pypy-integration-rabbitmq PYPY_VERSION="pypy2.7-6.0.0"
   - python: '3.6'
-    env: TOXENV=pypy-integration-redis PYPY_VERSION="pypy2.7-5.8.0"
+    env: TOXENV=pypy-integration-redis PYPY_VERSION="pypy2.7-6.0.0"
   - python: '3.6'
-    env: TOXENV=pypy-integration-dynamodb PYPY_VERSION="pypy2.7-5.8.0"
+    env: TOXENV=pypy-integration-dynamodb PYPY_VERSION="pypy2.7-6.0.0"
   - python: '3.6'
     env: TOXENV=flake8
     stage: lint