error[E0308]: mismatched types
  --> tests/ui-msrv/transmute-mut-src-dst-not-references.rs:17:59
   |
17 | const SRC_DST_NOT_REFERENCES: &mut usize = transmute_mut!(0usize);
   |                                            ---------------^^^^^^-
   |                                            |              |
   |                                            |              expected `&mut _`, found `usize`
   |                                            |              help: consider mutably borrowing here: `&mut 0usize`
   |                                            expected due to this
   |
   = note: expected mutable reference `&mut _`
                           found type `usize`