rust/tests/ui/closures/2229_closure_analysis/diagnostics/repr_packed.stderr
2023-01-31 20:28:11 +01:00

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error[E0793]: reference to packed field is unaligned
--> $DIR/repr_packed.rs:21:24
|
LL | println!("{}", foo.x);
| ^^^^^
|
= note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
= help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers)
= note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to previous error
For more information about this error, try `rustc --explain E0793`.