message: Remove some needless parentheses now reported on nightly.
diff: @@ -127,7 +127,7 @@ impl CargoPathExt for Path {
  fn move_in_time<F>(&self, travel_amount: F)
  where
  - F: Fn(i64, u32) -> ((i64, u32)),
  + F: Fn(i64, u32) -> (i64, u32),
  {
  if self.is_file() {
  time_travel(self, &travel_amount);
  @@ -137,7 +137,7 @@ impl CargoPathExt for Path {
  fn recurse<F>(p: &Path, bad: &Path, travel_amount: &F)
  where
  - F: Fn(i64, u32) -> ((i64, u32)),
  + F: Fn(i64, u32) -> (i64, u32),
  {
  if p.is_file() {
  time_travel(p, travel_amount)
  @@ -151,7 +151,7 @@ impl CargoPathExt for Path {
  fn time_travel<F>(path: &Path, travel_amount: &F)
  where
  - F: Fn(i64, u32) -> ((i64, u32)),
  + F: Fn(i64, u32) -> (i64, u32),
  {
  let stat = t!(path.symlink_metadata());
  