Enable more CI tests

Before, there Serde tests where not running.

Author: vks

.travis.yml

@@ -14,19 +14,31 @@ matrix:
         # TODO: use --tests instead of --lib on more recent compiler
         - cargo test --lib --no-default-features
         - cargo test --package rand_core --no-default-features
+        - cargo test --package rand_isaac --no-default-features
+        - cargo test --package rand_isaac --features serde1,std
+        - cargo test --package rand_xorshift --no-default-features
+        - cargo test --package rand_xorshift --features serde1,std
         - cargo test --features serde1,log
     - rust: stable
       os: osx
       install:
       script:
         - cargo test --tests --no-default-features
         - cargo test --package rand_core --no-default-features
+        - cargo test --package rand_isaac --no-default-features
+        - cargo test --package rand_isaac --features serde1,std
+        - cargo test --package rand_xorshift --no-default-features
+        - cargo test --package rand_xorshift --features serde1,std
         - cargo test --features serde1,log
     - rust: beta
       install:
       script:
         - cargo test --tests --no-default-features
         - cargo test --package rand_core --no-default-features
+        - cargo test --package rand_isaac --no-default-features
+        - cargo test --package rand_isaac --features serde1,std
+        - cargo test --package rand_xorshift --no-default-features
+        - cargo test --package rand_xorshift --features serde1,std
         - cargo test --features serde1,log
     - rust: nightly
       install:
@@ -37,7 +49,7 @@ matrix:
         - cargo test --tests --no-default-features --features=alloc
         - cargo test --package rand_core --no-default-features --features=alloc,serde1
         - cargo test --features serde1,log,nightly,alloc
-        - cargo test --all --benches
+        - cargo test --all --all-features --benches
         # remove cached documentation, otherwise files from previous PRs can get included
         - rm -rf target/doc
         - cargo doc --no-deps --all --all-features