error: any use of this value will cause an error
  --> $SRC_DIR/libcore/ptr/const_ptr.rs:LL:COL
   |
LL |           intrinsics::ptr_offset_from(self, origin)
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |           |
   |           ptr_offset_from cannot compute offset of pointers into different allocations.
   |           inside `std::ptr::const_ptr::<impl *const Struct>::offset_from` at $SRC_DIR/libcore/ptr/const_ptr.rs:LL:COL
   |           inside `DIFFERENT_ALLOC` at $DIR/offset_from_ub.rs:17:27
   | 
  ::: $DIR/offset_from_ub.rs:11:1
   |
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/const_ptr.rs:LL:COL
   |
LL |           intrinsics::ptr_offset_from(self, origin)
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |           |
   |           unable to turn bytes into a pointer
   |           inside `std::ptr::const_ptr::<impl *const u8>::offset_from` at $SRC_DIR/libcore/ptr/const_ptr.rs:LL:COL
   |           inside `NOT_PTR` at $DIR/offset_from_ub.rs:23:14
   | 
  ::: $DIR/offset_from_ub.rs:21:1
   |
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/const_ptr.rs:LL:COL
   |
LL |           intrinsics::ptr_offset_from(self, origin)
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |           |
   |           exact_div: 1isize cannot be divided by 2isize without remainder
   |           inside `std::ptr::const_ptr::<impl *const u16>::offset_from` at $SRC_DIR/libcore/ptr/const_ptr.rs:LL:COL
   |           inside `NOT_MULTIPLE_OF_SIZE` at $DIR/offset_from_ub.rs:31:14
   | 
  ::: $DIR/offset_from_ub.rs:26:1
   |
LL | / pub const NOT_MULTIPLE_OF_SIZE: isize = {
LL | |
LL | |     let data = [5u8, 6, 7];
LL | |     let base_ptr = data.as_ptr();
LL | |     let field_ptr = &data[1] as *const u8 as *const u16;
LL | |     unsafe { field_ptr.offset_from(base_ptr as *const u16) }
LL | | };
   | |__-

error: any use of this value will cause an error
  --> $SRC_DIR/libcore/ptr/const_ptr.rs:LL:COL
   |
LL |           intrinsics::ptr_offset_from(self, origin)
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |           |
   |           inbounds test failed: 0x0 is not a valid pointer
   |           inside `std::ptr::const_ptr::<impl *const u8>::offset_from` at $SRC_DIR/libcore/ptr/const_ptr.rs:LL:COL
   |           inside `OFFSET_FROM_NULL` at $DIR/offset_from_ub.rs:37:14
   | 
  ::: $DIR/offset_from_ub.rs:34:1
   |
LL | / pub const OFFSET_FROM_NULL: isize = {
LL | |
LL | |     let ptr = 0 as *const u8;
LL | |     unsafe { ptr.offset_from(ptr) }
LL | | };
   | |__-

error: any use of this value will cause an error
  --> $SRC_DIR/libcore/ptr/const_ptr.rs:LL:COL
   |
LL |           intrinsics::ptr_offset_from(self, origin)
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |           |
   |           unable to turn bytes into a pointer
   |           inside `std::ptr::const_ptr::<impl *const u8>::offset_from` at $SRC_DIR/libcore/ptr/const_ptr.rs:LL:COL
   |           inside `DIFFERENT_INT` at $DIR/offset_from_ub.rs:44:14
   | 
  ::: $DIR/offset_from_ub.rs:40:1
   |
LL | / pub const DIFFERENT_INT: isize = { // offset_from with two different integers: like DIFFERENT_ALLOC
LL | |
LL | |     let ptr1 = 8 as *const u8;
LL | |     let ptr2 = 16 as *const u8;
LL | |     unsafe { ptr2.offset_from(ptr1) }
LL | | };
   | |__-

error: aborting due to 5 previous errors