Merge pull request rust-lang#4482 from RalfJung/deps

update dependencies

Author: RalfJung

src/tools/miri/Cargo.lock

@@ -45,12 +45,12 @@ serde = { version = "1.0.219", features = ["derive"], optional = true }
 
 [target.'cfg(target_os = "linux")'.dependencies]
 nix = { version = "0.30.1", features = ["mman", "ptrace", "signal"], optional = true }
-ipc-channel = { version = "0.19.0", optional = true }
+ipc-channel = { version = "0.20.0", optional = true }
 capstone = { version = "0.13", optional = true }
 
 [dev-dependencies]
-ui_test = "0.29.1"
-colored = "2"
+ui_test = "0.30.2"
+colored = "3"
 rustc_version = "0.4"
 regex = "1.5.5"
 tempfile = "3"