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error[E0133]: mutation of layout constrained field is unsafe and requires unsafe function or block
--> $DIR/unsafe-borrow.rs:9:13
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LL | let a = &mut foo.0.0;
| ^^^^^^^^^^^^ mutation of layout constrained field
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= note: mutating layout constrained fields cannot statically be checked for valid values
error[E0133]: mutation of layout constrained field is unsafe and requires unsafe function or block
--> $DIR/unsafe-borrow.rs:29:13
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LL | let a = &mut foo.0[2];
| ^^^^^^^^^^^^^ mutation of layout constrained field
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= note: mutating layout constrained fields cannot statically be checked for valid values
error[E0133]: mutation of layout constrained field is unsafe and requires unsafe function or block
--> $DIR/unsafe-borrow.rs:48:18
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LL | NonZero((a,)) => *a = 0,
| ^ mutation of layout constrained field
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= note: mutating layout constrained fields cannot statically be checked for valid values
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0133`.
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