rust/tests/fail/stacked_borrows/pass_invalid_mut.stderr

error: Undefined Behavior: trying to retag from <TAG> for SharedReadWrite permission at ALLOC[0x0], but that tag does not exist in the borrow stack for this location
  --> $DIR/pass_invalid_mut.rs:LL:CC
   |
LL |     foo(xref);
   |         ^^^^
   |         |
   |         trying to retag from <TAG> for SharedReadWrite permission at ALLOC[0x0], but that tag does not exist in the borrow stack for this location
   |         this error occurs as part of two-phase retag at ALLOC[0x0..0x4]
   |
   = help: this indicates a potential bug in the program: it performed an invalid operation, but the Stacked Borrows rules it violated are still experimental
   = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information
help: <TAG> was created by a Unique retag at offsets [0x0..0x4]
  --> $DIR/pass_invalid_mut.rs:LL:CC
   |
LL |     let xref = unsafe { &mut *xraw };
   |                         ^^^^^^^^^^
help: <TAG> was later invalidated at offsets [0x0..0x4] by a read access
  --> $DIR/pass_invalid_mut.rs:LL:CC
   |
LL |     let _val = unsafe { *xraw }; // invalidate xref
   |                         ^^^^^
   = note: BACKTRACE:
   = note: inside `main` at $DIR/pass_invalid_mut.rs:LL:CC

note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace

error: aborting due to previous error
Improve information sharing across SB diagnostics Previous Stacked Borrows diagnostics were missing a lot of information about the state of the interpreter, and it was difficult to add additional state because it was threaded through all the intervening function signatures. This change factors a lot of the arguments which used to be passed individually to many stacked borrows functions into a single `DiagnosticCx`, which is built in `Stacks::for_each`, and since it wraps a handle to `AllocHistory`, we can now handle more nuanced things like heterogeneous borrow of `!Freeze` types. 2022-05-22 19:39:09 -04:00			`error: Undefined Behavior: trying to retag from <TAG> for SharedReadWrite permission at ALLOC[0x0], but that tag does not exist in the borrow stack for this location`
Add a custom ui test runner and move all tests to it 2022-03-17 13:49:10 +00:00			`--> $DIR/pass_invalid_mut.rs:LL:CC`
			`\|`
			`LL \| foo(xref);`
			`\| ^^^^`
			`\| \|`
Improve information sharing across SB diagnostics Previous Stacked Borrows diagnostics were missing a lot of information about the state of the interpreter, and it was difficult to add additional state because it was threaded through all the intervening function signatures. This change factors a lot of the arguments which used to be passed individually to many stacked borrows functions into a single `DiagnosticCx`, which is built in `Stacks::for_each`, and since it wraps a handle to `AllocHistory`, we can now handle more nuanced things like heterogeneous borrow of `!Freeze` types. 2022-05-22 19:39:09 -04:00			`\| trying to retag from <TAG> for SharedReadWrite permission at ALLOC[0x0], but that tag does not exist in the borrow stack for this location`
			`\| this error occurs as part of two-phase retag at ALLOC[0x0..0x4]`
Add a custom ui test runner and move all tests to it 2022-03-17 13:49:10 +00:00			`\|`
bless 2022-06-11 22:34:01 -07:00			`= help: this indicates a potential bug in the program: it performed an invalid operation, but the Stacked Borrows rules it violated are still experimental`
Add a custom ui test runner and move all tests to it 2022-03-17 13:49:10 +00:00			`= help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information`
Improve information sharing across SB diagnostics Previous Stacked Borrows diagnostics were missing a lot of information about the state of the interpreter, and it was difficult to add additional state because it was threaded through all the intervening function signatures. This change factors a lot of the arguments which used to be passed individually to many stacked borrows functions into a single `DiagnosticCx`, which is built in `Stacks::for_each`, and since it wraps a handle to `AllocHistory`, we can now handle more nuanced things like heterogeneous borrow of `!Freeze` types. 2022-05-22 19:39:09 -04:00			`help: <TAG> was created by a Unique retag at offsets [0x0..0x4]`
Add a custom ui test runner and move all tests to it 2022-03-17 13:49:10 +00:00			`--> $DIR/pass_invalid_mut.rs:LL:CC`
			`\|`
			`LL \| let xref = unsafe { &mut *xraw };`
			`\| ^^^^^^^^^^`
Improve information sharing across SB diagnostics Previous Stacked Borrows diagnostics were missing a lot of information about the state of the interpreter, and it was difficult to add additional state because it was threaded through all the intervening function signatures. This change factors a lot of the arguments which used to be passed individually to many stacked borrows functions into a single `DiagnosticCx`, which is built in `Stacks::for_each`, and since it wraps a handle to `AllocHistory`, we can now handle more nuanced things like heterogeneous borrow of `!Freeze` types. 2022-05-22 19:39:09 -04:00			`help: <TAG> was later invalidated at offsets [0x0..0x4] by a read access`
Add a custom ui test runner and move all tests to it 2022-03-17 13:49:10 +00:00			`--> $DIR/pass_invalid_mut.rs:LL:CC`
			`\|`
			`LL \| let _val = unsafe { *xraw }; // invalidate xref`
			`\| ^^^^^`
make backtrace header a bit more visible 2022-08-31 14:51:05 +02:00			`= note: BACKTRACE:`
Add a custom ui test runner and move all tests to it 2022-03-17 13:49:10 +00:00			= note: inside `main` at $DIR/pass_invalid_mut.rs:LL:CC

			note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace

			`error: aborting due to previous error`