error: any use of this value will cause an error
  --> $SRC_DIR/libcore/ptr/mod.rs:LL:COL
   |
LL |           intrinsics::ptr_offset_from(self, origin)
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |           |
   |           ptr_offset_from cannot compute offset of pointers into different allocations.
   |           inside call to `std::ptr::<impl *const Struct>::offset_from` at $DIR/offset_from_ub.rs:19:27
   | 
  ::: $DIR/offset_from_ub.rs:13:1
   |
LL | / pub const DIFFERENT_ALLOC: usize = {
LL | |
LL | |     let uninit = std::mem::MaybeUninit::<Struct>::uninit();
LL | |     let base_ptr: *const Struct = &uninit as *const _ as *const Struct;
...  |
LL | |     offset as usize
LL | | };
   | |__-
   |
   = note: `#[deny(const_err)]` on by default

error: any use of this value will cause an error
  --> $SRC_DIR/libcore/ptr/mod.rs:LL:COL
   |
LL |           intrinsics::ptr_offset_from(self, origin)
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |           |
   |           a memory access tried to interpret some bytes as a pointer
   |           inside call to `std::ptr::<impl *const u8>::offset_from` at $DIR/offset_from_ub.rs:25:14
   | 
  ::: $DIR/offset_from_ub.rs:23:1
   |
LL | / pub const NOT_PTR: usize = {
LL | |
LL | |     unsafe { (42 as *const u8).offset_from(&5u8) as usize }
LL | | };
   | |__-

error: any use of this value will cause an error
  --> $SRC_DIR/libcore/ptr/mod.rs:LL:COL
   |
LL |           intrinsics::ptr_offset_from(self, origin)
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |           |
   |           exact_div: 1 cannot be divided by 2 without remainder
   |           inside call to `std::ptr::<impl *const u16>::offset_from` at $DIR/offset_from_ub.rs:33:27
   | 
  ::: $DIR/offset_from_ub.rs:28:1
   |
LL | / pub const NOT_MULTIPLE_OF_SIZE: usize = {
LL | |
LL | |     let data = [5u8, 6, 7];
LL | |     let base_ptr = data.as_ptr();
...  |
LL | |     offset as usize
LL | | };
   | |__-

error: aborting due to 3 previous errors