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Merge commit 'ac0e10aa68325235069a842f47499852b2dee79e' into clippyup
[rust.git] / src / tools / miri / tests / fail / stacked_borrows / illegal_write1.stderr
1 error: Undefined Behavior: attempting a write access using <TAG> at ALLOC[0x0], but that tag only grants SharedReadOnly permission for this location
2   --> $DIR/illegal_write1.rs:LL:CC
3    |
4 LL |         unsafe { *x = 42 };
5    |                  ^^^^^^^
6    |                  |
7    |                  attempting a write access using <TAG> at ALLOC[0x0], but that tag only grants SharedReadOnly permission for this location
8    |                  this error occurs as part of an access at ALLOC[0x0..0x4]
9    |
10    = help: this indicates a potential bug in the program: it performed an invalid operation, but the Stacked Borrows rules it violated are still experimental
11    = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information
12 help: <TAG> was created by a SharedReadOnly retag at offsets [0x0..0x4]
13   --> $DIR/illegal_write1.rs:LL:CC
14    |
15 LL |         let x: *mut u32 = xref as *const _ as *mut _;
16    |                           ^^^^
17    = note: BACKTRACE:
18    = note: inside `main` at $DIR/illegal_write1.rs:LL:CC
19
20 note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
21
22 error: aborting due to previous error
23