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error: Undefined Behavior: not granting access to tag <TAG> because incompatible item [SharedReadOnly for <TAG>] is protected by call ID
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--> $DIR/invalidate_against_barrier2.rs:LL:CC
|
LL | unsafe { *x = 0 };
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| ^^^^^^ not granting access to tag <TAG> because incompatible item [SharedReadOnly for <TAG>] is protected by call ID
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|
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= help: this indicates a potential bug in the program: it performed an invalid operation, but the Stacked Borrows rules it violated are still experimental
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= help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information
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help: <TAG> was created by a retag at offsets [0x0..0x4]
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--> $DIR/invalidate_against_barrier2.rs:LL:CC
|
LL | let xraw = &mut x as *mut _;
| ^^^^^^
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help: <TAG> was protected due to <TAG> which was created here
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--> $DIR/invalidate_against_barrier2.rs:LL:CC
|
LL | inner(xraw, xref);
| ^^^^
help: this protector is live for this call
--> $DIR/invalidate_against_barrier2.rs:LL:CC
|
LL | / fn inner(x: *mut i32, _y: &i32) {
LL | | // If `x` and `y` alias, retagging is fine with this... but we really
LL | | // shouldn't be allowed to write to `x` at all because `y` was assumed to be
LL | | // immutable for the duration of this call.
LL | | unsafe { *x = 0 };
LL | | }
| |_^
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= note: backtrace:
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= note: inside `inner` at $DIR/invalidate_against_barrier2.rs:LL:CC
note: inside `main` at $DIR/invalidate_against_barrier2.rs:LL:CC
--> $DIR/invalidate_against_barrier2.rs:LL:CC
|
LL | inner(xraw, xref);
| ^^^^^^^^^^^^^^^^^
note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
error: aborting due to previous error