Ensure caches are being used properly

Author: typedrat

appveyor.yml

@@ -21,14 +21,14 @@ cache:
 
 build_script:
   - cabal %CABOPTS% new-configure --enable-tests
-  - appveyor-retry cabal new-build lib:Cabal --only-dependencies
+  - appveyor-retry cabal %CABOPTS% new-build lib:Cabal --only-dependencies
   - cabal %CABOPTS% new-build lib:Cabal
-  - appveyor-retry cabal new-build Cabal:tests --only-dependencies
+  - appveyor-retry cabal %CABOPTS% new-build Cabal:tests --only-dependencies
   - cabal %CABOPTS% new-test Cabal
-  - appveyor-retry cabal new-build exe:cabal exe:cabal-tests --only-dependencies
+  - appveyor-retry cabal %CABOPTS% new-build exe:cabal exe:cabal-tests --only-dependencies
   - cabal %CABOPTS% new-build exe:cabal
   - cabal %CABOPTS% new-run cabal-tests -- -j3 --with-cabal=dist-newstyle\build\x86_64-windows\ghc-8.0.2\cabal-install-2.3.0.0\build\cabal\cabal.exe
-  - appveyor-retry cabal new-build cabal-install:tests --only-dependencies
+  - appveyor-retry cabal %CABOPTS% new-build cabal-install:tests --only-dependencies
   - cd cabal-install
   - cabal %CABOPTS% new-run cabal-install:memory-usage-tests
   - cabal %CABOPTS% new-run cabal-install:solver-quickcheck