diff options
Diffstat (limited to 'tests/ui/pin_project/unaligned_references.stderr')
| -rw-r--r-- | tests/ui/pin_project/unaligned_references.stderr | 27 |
1 files changed, 10 insertions, 17 deletions
diff --git a/tests/ui/pin_project/unaligned_references.stderr b/tests/ui/pin_project/unaligned_references.stderr index 8d5ddfc..617f164 100644 --- a/tests/ui/pin_project/unaligned_references.stderr +++ b/tests/ui/pin_project/unaligned_references.stderr @@ -1,26 +1,19 @@ -error: reference to packed field is unaligned - --> tests/ui/pin_project/unaligned_references.rs:17:13 +error[E0793]: reference to packed field is unaligned + --> tests/ui/pin_project/unaligned_references.rs:15:13 | -17 | let _ = &a.f; //~ ERROR reference to packed field is unaligned +15 | let _ = &a.f; //~ ERROR reference to packed field is unaligned | ^^^^ | -note: the lint level is defined here - --> tests/ui/pin_project/unaligned_references.rs:1:11 - | -1 | #![forbid(unaligned_references)] - | ^^^^^^^^^^^^^^^^^^^^ - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = note: for more information, see issue #82523 <https://github.com/rust-lang/rust/issues/82523> - = 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: 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: reference to packed field is unaligned - --> tests/ui/pin_project/unaligned_references.rs:20:13 +error[E0793]: reference to packed field is unaligned + --> tests/ui/pin_project/unaligned_references.rs:18:13 | -20 | let _ = &b.f; //~ ERROR reference to packed field is unaligned +18 | let _ = &b.f; //~ ERROR reference to packed field is unaligned | ^^^^ | - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = note: for more information, see issue #82523 <https://github.com/rust-lang/rust/issues/82523> - = 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: 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) |