Isolate the compiletest dependencies

.travis.yml

@@ -20,7 +20,7 @@ script:
   - (cd serde && travis-cargo --only nightly build -- --no-default-features --features alloc)
   - (cd serde && travis-cargo --only nightly build -- --no-default-features --features collections)
   - (cd test_suite && travis-cargo --only beta test)
-  - (cd test_suite && travis-cargo --only nightly test -- --features unstable-testing)
+  - (cd test_suite/deps && travis-cargo --only nightly build && cd .. && travis-cargo --only nightly test -- --features unstable-testing)
   - (cd test_suite/no_std && travis-cargo --only nightly build)
 
 env:

test_suite/deps/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "serde_test_suite_deps"
+version = "0.0.0"
+authors = ["David Tolnay <dtolnay@gmail.com>"]
+publish = false
+
+[dependencies]
+serde = { path = "../../serde" }
+serde_derive = { path = "../../serde_derive" }

test_suite/tests/compiletest.rs

@@ -6,7 +6,7 @@ fn run_mode(mode: &'static str) {
     let mut config = compiletest::default_config();
 
     config.mode = mode.parse().expect("invalid mode");
-    config.target_rustcflags = Some("-L target/debug/ -L target/debug/deps/".to_owned());
+    config.target_rustcflags = Some("-L deps/target/debug/deps".to_owned());
     if let Ok(name) = env::var("TESTNAME") {
         config.filter = Some(name);
     }

test_suite/tests/test.rs

@@ -23,4 +23,4 @@ mod test_macros;
 mod test_ser;
 
 #[cfg(feature = "unstable-testing")]
-mod compile_tests;
+mod compiletest;