Use temporary branch for compiletest

rust-lang/rust#58689 broke it

Author: mati865

Cargo.toml

@@ -47,7 +47,7 @@ rustc_tools_util = { version = "0.1.1", path = "rustc_tools_util"}
 [dev-dependencies]
 clippy_dev = { version = "0.0.1", path = "clippy_dev" }
 cargo_metadata = "0.7.1"
-compiletest_rs = "0.3.18"
+compiletest_rs = { git = "https://github.com/mati865/compiletest-rs.git", branch = "rustup" }
 lazy_static = "1.0"
 serde_derive = "1.0"
 clippy-mini-macro-test = { version = "0.2", path = "mini-macro" }