1 warning: byte slice in a packed struct that derives a built-in trait
2 --> $DIR/deriving-with-repr-packed.rs:31:5
5 | ----- in this derive macro expansion
10 = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
11 = note: for more information, see issue #107457 <https://github.com/rust-lang/rust/issues/107457>
12 = help: consider implementing the trait by hand, or remove the `packed` attribute
13 = note: `#[warn(byte_slice_in_packed_struct_with_derive)]` on by default
14 = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
16 error[E0507]: cannot move out of `self` which is behind a shared reference
17 --> $DIR/deriving-with-repr-packed.rs:22:10
19 LL | #[derive(Debug, Default)]
20 | ----- in this derive macro expansion
23 | ^ move occurs because `self.0` has type `Y`, which does not implement the `Copy` trait
25 = note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
27 error: aborting due to previous error; 1 warning emitted
29 For more information about this error, try `rustc --explain E0507`.
30 Future incompatibility report: Future breakage diagnostic:
31 warning: byte slice in a packed struct that derives a built-in trait
32 --> $DIR/deriving-with-repr-packed.rs:31:5
35 | ----- in this derive macro expansion
40 = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
41 = note: for more information, see issue #107457 <https://github.com/rust-lang/rust/issues/107457>
42 = help: consider implementing the trait by hand, or remove the `packed` attribute
43 = note: `#[warn(byte_slice_in_packed_struct_with_derive)]` on by default
44 = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)