Use compiletest_rs flags supported by stable toolchain, and fixed it'…

…s version in place.

Made Travis CI run all tests on almost all platforms, except oldest rustc 1.20 which is incompatible with compiletest_rs.

Now all tests could be run locally without Nightly, and on more platforms in CI.

.gitignore

@@ -1,2 +1,4 @@
 target
 Cargo.lock
+
+/.idea/

.travis.yml

@@ -3,16 +3,18 @@ branches:
   - /.*(.tmp)$/
 
 language: rust
+env: EXTRA_ARGS="--features unstable"
 matrix:
   include:
     # This version is tested to avoid unintentional bumping of the minimum supported Rust version
     - rust: 1.20.0
+      # This version don't support unstable features
+      env: EXTRA_ARGS=""
     - rust: stable
     - rust: stable
       os: osx
     - rust: beta
     - rust: nightly
-      env: EXTRA_ARGS="--features unstable"
 
 sudo: false
 script:

test_suite/Cargo.toml

@@ -7,7 +7,7 @@ unstable = ["compiletest_rs"]
 
 [dependencies]
 bitflags = { path = "../" }
-compiletest_rs = { version = "*", optional = true }
+compiletest_rs = { version = "0.3.18", optional = true, features=["stable"] }
 serde = "1.0"
 serde_derive = "1.0"
 serde_json = "1.0"