41 lines
1.9 KiB
Plaintext
41 lines
1.9 KiB
Plaintext
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_protector2.rs:LL:CC
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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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= 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 SharedReadWrite retag at offsets [0x0..0x4]
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--> $DIR/invalidate_against_protector2.rs:LL:CC
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LL | let xraw = &mut x as *mut _;
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| ^^^^^^
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help: <TAG> cannot be used for memory access because that would remove protected tag <TAG>, protected by this function call
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--> $DIR/invalidate_against_protector2.rs:LL:CC
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LL | / fn inner(x: *mut i32, _y: &i32) {
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LL | | // If `x` and `y` alias, retagging is fine with this... but we really
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LL | | // shouldn't be allowed to write to `x` at all because `y` was assumed to be
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LL | | // immutable for the duration of this call.
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LL | | unsafe { *x = 0 };
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LL | | }
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| |_^
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help: <TAG> was derived from <TAG>, which in turn was created here
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--> $DIR/invalidate_against_protector2.rs:LL:CC
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LL | inner(xraw, xref);
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| ^^^^
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= note: backtrace:
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= note: inside `inner` at $DIR/invalidate_against_protector2.rs:LL:CC
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note: inside `main` at $DIR/invalidate_against_protector2.rs:LL:CC
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--> $DIR/invalidate_against_protector2.rs:LL:CC
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LL | inner(xraw, xref);
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| ^^^^^^^^^^^^^^^^^
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note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
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error: aborting due to previous error
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