message: Capture test output by default
  The `rustc-test` crate has this feature disabled by default causing all
  of the test `println!` output to be displayed.
diff: @@ -49,7 +49,7 @@ git = "https://github.com/jwilm/glutin"
  rev = "af7fe340bd4a2af53ea521defcb4f377cdc588cf"
  [dev-dependencies]
  -rustc-test = "0.1"
  +rustc-test = { version = "0.1", features = ["capture"] }
  [profile.release]
  lto = true
  