1 error: reference to packed field is unaligned
2 --> $DIR/repr_packed.rs:21:24
4 LL | println!("{}", foo.x);
7 = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
8 = note: for more information, see issue #82523 <https://github.com/rust-lang/rust/issues/82523>
9 = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
10 = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers)
11 = note: `#[deny(unaligned_references)]` on by default
12 = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
14 error: aborting due to previous error
16 Future incompatibility report: Future breakage diagnostic:
17 error: reference to packed field is unaligned
18 --> $DIR/repr_packed.rs:21:24
20 LL | println!("{}", foo.x);
23 = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
24 = note: for more information, see issue #82523 <https://github.com/rust-lang/rust/issues/82523>
25 = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
26 = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers)
27 = note: `#[deny(unaligned_references)]` on by default
28 = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)