error[E0512]: transmute called with types of different sizes
  --> $DIR/transmute-from-fn-item-types-error.rs:19:13
   |
19 |     let i = mem::transmute(bar);
   |             ^^^^^^^^^^^^^^
   |
   = note: source type: unsafe fn() {bar} (0 bits)
   = note: target type: i32 (32 bits)

error[E0591]: can't transmute zero-sized type
  --> $DIR/transmute-from-fn-item-types-error.rs:23:13
   |
23 |     let p = mem::transmute(foo);
   |             ^^^^^^^^^^^^^^
   |
   = note: source type: unsafe fn() -> (i32, *const (), std::option::Option<fn()>) {foo}
   = note: target type: *const ()
   = help: cast with `as` to a pointer instead

error[E0591]: can't transmute zero-sized type
  --> $DIR/transmute-from-fn-item-types-error.rs:27:14
   |
27 |     let of = mem::transmute(main);
   |              ^^^^^^^^^^^^^^
   |
   = note: source type: fn() {main}
   = note: target type: std::option::Option<fn()>
   = help: cast with `as` to a pointer instead

error[E0512]: transmute called with types of different sizes
  --> $DIR/transmute-from-fn-item-types-error.rs:36:5
   |
36 |     mem::transmute::<_, u8>(main);
   |     ^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: source type: fn() {main} (0 bits)
   = note: target type: u8 (8 bits)

error[E0591]: can't transmute zero-sized type
  --> $DIR/transmute-from-fn-item-types-error.rs:40:5
   |
40 |     mem::transmute::<_, *mut ()>(foo);
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: source type: unsafe fn() -> (i32, *const (), std::option::Option<fn()>) {foo}
   = note: target type: *mut ()
   = help: cast with `as` to a pointer instead

error[E0591]: can't transmute zero-sized type
  --> $DIR/transmute-from-fn-item-types-error.rs:44:5
   |
44 |     mem::transmute::<_, fn()>(bar);
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: source type: unsafe fn() {bar}
   = note: target type: fn()
   = help: cast with `as` to a pointer instead

error[E0512]: transmute called with types of different sizes
  --> $DIR/transmute-from-fn-item-types-error.rs:49:5
   |
49 |     mem::transmute::<fn(), u32>(main);
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: source type: fn() (64 bits)
   = note: target type: u32 (32 bits)

error[E0591]: can't transmute zero-sized type
  --> $DIR/transmute-from-fn-item-types-error.rs:53:5
   |
53 |     mem::transmute::<_, *mut ()>(Some(foo));
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: source type: unsafe fn() -> (i32, *const (), std::option::Option<fn()>) {foo}
   = note: target type: *mut ()
   = help: cast with `as` to a pointer instead

error[E0591]: can't transmute zero-sized type
  --> $DIR/transmute-from-fn-item-types-error.rs:57:5
   |
57 |     mem::transmute::<_, fn()>(Some(bar));
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: source type: unsafe fn() {bar}
   = note: target type: fn()
   = help: cast with `as` to a pointer instead

error[E0591]: can't transmute zero-sized type
  --> $DIR/transmute-from-fn-item-types-error.rs:61:5
   |
61 |     mem::transmute::<_, Option<fn()>>(Some(baz));
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: source type: unsafe fn() {baz}
   = note: target type: std::option::Option<fn()>
   = help: cast with `as` to a pointer instead

error[E0512]: transmute called with types of different sizes
  --> $DIR/transmute-from-fn-item-types-error.rs:66:5
   |
66 |     mem::transmute::<Option<fn()>, u32>(Some(main));
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: source type: std::option::Option<fn()> (64 bits)
   = note: target type: u32 (32 bits)

error: aborting due to previous error(s)