Update rustfix in compiletest.

Author: ehuss

Cargo.lock

@@ -596,7 +596,7 @@ dependencies = [
  "log",
  "miow 0.3.3",
  "regex",
- "rustfix 0.4.6",
+ "rustfix 0.5.0",
  "serde",
  "serde_json",
  "walkdir",

src/tools/compiletest/Cargo.toml

@@ -12,7 +12,7 @@ log = "0.4"
 regex = "1.0"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-rustfix = "0.4.1"
+rustfix = "0.5.0"
 lazy_static = "1.0"
 walkdir = "2"