warning: enum variant is more than three times larger (32 bytes) than the next largest
  --> $DIR/enum-size-variance.rs:18:5
   |
LL |     L(i64, i64, i64, i64), //~ WARNING three times larger
   |     ^^^^^^^^^^^^^^^^^^^^^
   |
note: lint level defined here
  --> $DIR/enum-size-variance.rs:3:9
   |
LL | #![warn(variant_size_differences)]
   |         ^^^^^^^^^^^^^^^^^^^^^^^^