message: test bitmasks smaller than a byte
diff: @@ -201,7 +201,7 @@ fn simd_mask() {
  let values = [false, false, false, true];
  let mask = Mask::<i64, 4>::from_array(values);
  let bitmask = mask.to_bitmask();
  - // FIXME fails until https://github.com/rust-lang/portable-simd/pull/267 lands: assert_eq!(bitmask, 0b1000);
  + assert_eq!(bitmask, 0b1000);
  assert_eq!(Mask::<i64, 4>::from_bitmask(bitmask), mask);
  }
  