--- /dev/null
+error: transmuting a known null pointer into a reference
+ --> $DIR/transmuting_null.rs:10:23
+ |
+LL | let _: &u64 = std::mem::transmute(0 as *const u64);
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ |
+ = note: `-D clippy::transmuting-null` implied by `-D warnings`
+
+error: transmuting a known null pointer into a reference
+ --> $DIR/transmuting_null.rs:11:23
+ |
+LL | let _: &u64 = std::mem::transmute(std::ptr::null::<u64>());
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: transmuting a known null pointer into a reference
+ --> $DIR/transmuting_null.rs:21:23
+ |
+LL | let _: &u64 = std::mem::transmute(ZPTR);
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: aborting due to 3 previous errors
+