[dependencies]
rustc_arena = { path = "../rustc_arena" }
tracing = "0.1"
-rustc-rayon-core = { version = "0.3.2", optional = true }
+rustc-rayon-core = { version = "0.4.0", optional = true }
rustc_ast = { path = "../rustc_ast" }
rustc_data_structures = { path = "../rustc_data_structures" }
rustc_errors = { path = "../rustc_errors" }