error[E0793]: reference to packed field is unaligned
  --> $DIR/issue-53114-safety-checks.rs:23:13
   |
LL |     let _ = &p.b;
   |             ^^^^
   |
   = 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
  --> $DIR/issue-53114-safety-checks.rs:28:17
   |
LL |     let (_,) = (&p.b,);
   |                 ^^^^
   |
   = 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
  --> $DIR/issue-53114-safety-checks.rs:37:16
   |
LL |     let _: _ = &p.b;
   |                ^^^^
   |
   = 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
  --> $DIR/issue-53114-safety-checks.rs:42:20
   |
LL |     let (_,): _ = (&p.b,);
   |                    ^^^^
   |
   = 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
  --> $DIR/issue-53114-safety-checks.rs:51:11
   |
LL |     match &p.b  { _ => { } }
   |           ^^^^
   |
   = 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
  --> $DIR/issue-53114-safety-checks.rs:56:12
   |
LL |     match (&p.b,)  { (_,) => { } }
   |            ^^^^
   |
   = 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[E0133]: access to union field is unsafe and requires unsafe function or block
  --> $DIR/issue-53114-safety-checks.rs:24:13
   |
LL |     let _ = u1.a;
   |             ^^^^ access to union field
   |
   = note: the field may not be properly initialized: using uninitialized data will cause undefined behavior

error[E0133]: access to union field is unsafe and requires unsafe function or block
  --> $DIR/issue-53114-safety-checks.rs:25:13
   |
LL |     let _ = &u2.a;
   |             ^^^^^ access to union field
   |
   = note: the field may not be properly initialized: using uninitialized data will cause undefined behavior

error[E0133]: access to union field is unsafe and requires unsafe function or block
  --> $DIR/issue-53114-safety-checks.rs:29:17
   |
LL |     let (_,) = (u1.a,);
   |                 ^^^^ access to union field
   |
   = note: the field may not be properly initialized: using uninitialized data will cause undefined behavior

error[E0133]: access to union field is unsafe and requires unsafe function or block
  --> $DIR/issue-53114-safety-checks.rs:30:17
   |
LL |     let (_,) = (&u2.a,);
   |                 ^^^^^ access to union field
   |
   = note: the field may not be properly initialized: using uninitialized data will cause undefined behavior

error[E0133]: access to union field is unsafe and requires unsafe function or block
  --> $DIR/issue-53114-safety-checks.rs:38:16
   |
LL |     let _: _ = u1.a;
   |                ^^^^ access to union field
   |
   = note: the field may not be properly initialized: using uninitialized data will cause undefined behavior

error[E0133]: access to union field is unsafe and requires unsafe function or block
  --> $DIR/issue-53114-safety-checks.rs:39:16
   |
LL |     let _: _ = &u2.a;
   |                ^^^^^ access to union field
   |
   = note: the field may not be properly initialized: using uninitialized data will cause undefined behavior

error[E0133]: access to union field is unsafe and requires unsafe function or block
  --> $DIR/issue-53114-safety-checks.rs:43:20
   |
LL |     let (_,): _ = (u1.a,);
   |                    ^^^^ access to union field
   |
   = note: the field may not be properly initialized: using uninitialized data will cause undefined behavior

error[E0133]: access to union field is unsafe and requires unsafe function or block
  --> $DIR/issue-53114-safety-checks.rs:44:20
   |
LL |     let (_,): _ = (&u2.a,);
   |                    ^^^^^ access to union field
   |
   = note: the field may not be properly initialized: using uninitialized data will cause undefined behavior

error[E0133]: access to union field is unsafe and requires unsafe function or block
  --> $DIR/issue-53114-safety-checks.rs:52:11
   |
LL |     match u1.a  { _ => { } }
   |           ^^^^ access to union field
   |
   = note: the field may not be properly initialized: using uninitialized data will cause undefined behavior

error[E0133]: access to union field is unsafe and requires unsafe function or block
  --> $DIR/issue-53114-safety-checks.rs:53:11
   |
LL |     match &u2.a { _ => { } }
   |           ^^^^^ access to union field
   |
   = note: the field may not be properly initialized: using uninitialized data will cause undefined behavior

error[E0133]: access to union field is unsafe and requires unsafe function or block
  --> $DIR/issue-53114-safety-checks.rs:57:12
   |
LL |     match (u1.a,)  { (_,) => { } }
   |            ^^^^ access to union field
   |
   = note: the field may not be properly initialized: using uninitialized data will cause undefined behavior

error[E0133]: access to union field is unsafe and requires unsafe function or block
  --> $DIR/issue-53114-safety-checks.rs:58:12
   |
LL |     match (&u2.a,) { (_,) => { } }
   |            ^^^^^ access to union field
   |
   = note: the field may not be properly initialized: using uninitialized data will cause undefined behavior

error: aborting due to 18 previous errors

Some errors have detailed explanations: E0133, E0793.
For more information about an error, try `rustc --explain E0133`.