try the stable feature of compiletest

RalfJung · RalfJung · commit db2645b1eb1b · 2019-11-16T09:07:35.000+01:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -59,5 +59,5 @@ cargo_miri = ["cargo_metadata", "directories", "rustc_version"]
 rustc_tests = []
 
 [dev-dependencies]
-compiletest_rs = { version = "0.3.24", features = ["tmp"] }
+compiletest_rs = { version = "0.3.24", features = ["tmp", "stable"] }
 colored = "1.6"
