1error[E0793]: reference to packed field is unaligned 2 --> tests/ui/pin_project/packed_sneaky-4.rs:12:5 3 | 412 | f: u32, 5 | ^ 6 | 7 = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses 8 = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced) 9 = 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) 10 11error[E0793]: reference to packed field is unaligned 12 --> tests/ui/pin_project/packed_sneaky-4.rs:8:1 13 | 148 | #[pin_project] //~ ERROR reference to packed field is unaligned 15 | ^^^^^^^^^^^^^^ 16 | 17 = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses 18 = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced) 19 = 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) 20 = note: this error originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info) 21