error[E0133]: dereference of raw pointer is unsafe and requires unsafe function or block --> $DIR/issue-45087-unreachable-unsafe.rs:7:5 | LL | *(1 as *mut u32) = 42; | ^^^^^^^^^^^^^^^^^^^^^ dereference of raw pointer | = note: raw pointers may be null, dangling or unaligned; they can violate aliasing rules and cause data races: all of these are undefined behavior error[E0133]: dereference of raw pointer is unsafe and requires unsafe function or block --> $DIR/issue-45087-unreachable-unsafe.rs:17:5 | LL | *a = 1; | ^^^^^^ dereference of raw pointer | = note: raw pointers may be null, dangling or unaligned; they can violate aliasing rules and cause data races: all of these are undefined behavior error[E0133]: dereference of raw pointer is unsafe and requires unsafe function or block --> $DIR/issue-45087-unreachable-unsafe.rs:29:5 | LL | *b = 1; | ^^^^^^ dereference of raw pointer | = note: raw pointers may be null, dangling or unaligned; they can violate aliasing rules and cause data races: all of these are undefined behavior error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0133`.