error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
  --> $DIR/issue-112505-overflow.rs:4:14
   |
LL |     unsafe { std::mem::transmute(v) }
   |              ^^^^^^^^^^^^^^^^^^^
   |
   = note: source type: `[[[u32; 8888888]; 9999999]; 777777777]` (values of the type `[[u32; 8888888]; 9999999]` are too big for the current architecture)
   = note: target type: `[[[u32; 9999999]; 777777777]; 239]` (values of the type `[[u32; 9999999]; 777777777]` are too big for the current architecture)

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0512`.