error[E0284]: type annotations needed for `Mask<_, _>`
  --> $DIR/issue-91614.rs:6:9
   |
LL |     let y = Mask::<_, _>::splat(false);
   |         ^   ------------ type must be known at this point
   |
note: required by a const generic parameter in `Mask`
  --> $SRC_DIR/core/src/../../portable-simd/crates/core_simd/src/masks.rs:LL:COL
help: consider giving `y` an explicit type, where the value of const parameter `N` is specified
   |
LL |     let y: Mask<_, N> = Mask::<_, _>::splat(false);
   |          ++++++++++++

error[E0284]: type annotations needed for `Mask<_, _>`
  --> $DIR/issue-91614.rs:6:9
   |
LL |     let y = Mask::<_, _>::splat(false);
   |         ^   -------------------------- type must be known at this point
   |
note: required by a const generic parameter in `Mask::<T, N>::splat`
  --> $SRC_DIR/core/src/../../portable-simd/crates/core_simd/src/masks.rs:LL:COL
help: consider giving `y` an explicit type, where the value of const parameter `N` is specified
   |
LL |     let y: Mask<_, N> = Mask::<_, _>::splat(false);
   |          ++++++++++++

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0284`.