message: [coverage][easy] update code coverage runner
  Cargo build was updated recently.  We are updating the runner to use
  `cargo xtest` to stay in sync.
  Closes:
  Approved by: bmwill
diff: @@ -81,7 +81,7 @@ echo "Cleaning project..."
  echo "Running tests..."
  while read -r line; do
  dirline=$(realpath $(dirname "$line"));
  - (cd "$dirline"; cargo +nightly test --all-features)
  + (cd "$dirline"; cargo +nightly xtest)
  done < <(find "$TEST_DIR" -name 'Cargo.toml')
  # Make the coverage directory if it doesn't exist
  