message: Bump cargo_metadata to 0.8
diff: @@ -34,7 +34,7 @@ required-features = ["rustc_tests"]
  [dependencies]
  byteorder = { version = "1.1", features = ["i128"]}
  -cargo_metadata = { version = "0.7", optional = true }
  +cargo_metadata = { version = "0.8", optional = true }
  directories = { version = "1.0", optional = true }
  rustc_version = { version = "0.2.3", optional = true }
  env_logger = "0.6"
  