rust/src/test/ui/lint/unaligned_references_external_macro.stderr

error: reference to packed field is unaligned
  --> $DIR/unaligned_references_external_macro.rs:7:1
   |
LL | / unaligned_references_external_crate::mac! {
LL | |     #[repr(packed)]
LL | |     pub struct X {
LL | |         pub field: u16
LL | |     }
LL | | }
   | |_^
   |
note: the lint level is defined here
  --> $DIR/unaligned_references_external_macro.rs:7:1
   |
LL | / unaligned_references_external_crate::mac! {
LL | |     #[repr(packed)]
LL | |     pub struct X {
LL | |         pub field: u16
LL | |     }
LL | | }
   | |_^
   = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to previous error