Reenable cargo and rls tests in travis

Author: flip1995

.travis.yml

@@ -51,13 +51,12 @@ matrix:
     # We don't want to run these always because they go towards
     # the build limit within the Travis rust-lang account.
     # The jobs are approximately sorted by execution time
-    # disabled cargo and rls integration test due to https://github.com/rust-lang/rust-clippy/issues/4121
-    #- env: INTEGRATION=rust-lang/cargo
-    #  if: repo =~ /^rust-lang\/rust-clippy$/ AND branch IN (auto, try)
+    - env: INTEGRATION=rust-lang/cargo
+      if: repo =~ /^rust-lang\/rust-clippy$/ AND branch IN (auto, try)
     - env: INTEGRATION=rust-lang-nursery/chalk
       if: repo =~ /^rust-lang\/rust-clippy$/ AND branch IN (auto, try)
-    #- env: INTEGRATION=rust-lang/rls
-    #  if: repo =~ /^rust-lang\/rust-clippy$/ AND branch IN (auto, try)
+    - env: INTEGRATION=rust-lang/rls
+      if: repo =~ /^rust-lang\/rust-clippy$/ AND branch IN (auto, try)
     - env: INTEGRATION=Geal/nom
       if: repo =~ /^rust-lang\/rust-clippy$/ AND branch IN (auto, try)
     - env: INTEGRATION=rust-lang/rustfmt