1error: reference to packed field is unaligned 2 --> tests/ui/pin_project/packed.rs:5:1 3 | 45 | / pin_project! { //~ ERROR reference to packed field is unaligned 56 | | #[repr(packed, C)] 67 | | struct Packed { 78 | | #[pin] 89 | | field: u16, 910 | | } 1011 | | } 11 | |_^ 12 | 13note: the lint level is defined here 14 --> tests/ui/pin_project/packed.rs:5:1 15 | 165 | / pin_project! { //~ ERROR reference to packed field is unaligned 176 | | #[repr(packed, C)] 187 | | struct Packed { 198 | | #[pin] 209 | | field: u16, 2110 | | } 2211 | | } 23 | |_^ 24 = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! 25 = note: for more information, see issue #82523 <https://github.com/rust-lang/rust/issues/82523> 26 = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced) 27 = 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) 28 = note: this error originates in the macro `$crate::__pin_project_constant` (in Nightly builds, run with -Z macro-backtrace for more info) 29 30error: reference to packed field is unaligned 31 --> tests/ui/pin_project/packed.rs:13:1 32 | 3313 | / pin_project! { //~ ERROR reference to packed field is unaligned 3414 | | #[repr(packed(2))] 3515 | | struct PackedN { 3616 | | #[pin] 3717 | | field: u32, 3818 | | } 3919 | | } 40 | |_^ 41 | 42note: the lint level is defined here 43 --> tests/ui/pin_project/packed.rs:13:1 44 | 4513 | / pin_project! { //~ ERROR reference to packed field is unaligned 4614 | | #[repr(packed(2))] 4715 | | struct PackedN { 4816 | | #[pin] 4917 | | field: u32, 5018 | | } 5119 | | } 52 | |_^ 53 = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! 54 = note: for more information, see issue #82523 <https://github.com/rust-lang/rust/issues/82523> 55 = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced) 56 = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers) 57 = note: this error originates in the macro `$crate::__pin_project_constant` (in Nightly builds, run with -Z macro-backtrace for more info) 58