error[E0793]: reference to packed field is unaligned
  --> tests/ui/pin_project/packed_sneaky-4.rs:12:5
   |
12 |     f: u32,
   |     ^
   |
   = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses
   = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
   = 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)

error[E0793]: reference to packed field is unaligned
 --> tests/ui/pin_project/packed_sneaky-4.rs:8:1
  |
8 | #[pin_project] //~ ERROR reference to packed field is unaligned
  | ^^^^^^^^^^^^^^
  |
  = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses
  = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
  = 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)
  = note: this error originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info)