error: transmuting &T to &mut T is undefined behavior, even if the reference is unused, consider instead using an UnsafeCell | |
--> $DIR/transmute-imut-to-mut.rs:6:32 | |
| | |
LL | let _a: &mut u8 = unsafe { transmute(&1u8) }; | |
| ^^^^^^^^^ | |
| | |
= note: `#[deny(mutable_transmutes)]` on by default | |
error: aborting due to 1 previous error | |