blob: 7f55e06a6bb7a75b562f17fb4bf0af8edccc232a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
error: Undefined Behavior: reborrow through <TAG> at ALLOC[0x0] is forbidden
--> tests/fail/tree_borrows/write-during-2phase.rs:LL:CC
|
LL | fn add(&mut self, n: u64) -> u64 {
| ^^^^^^^^^ Undefined Behavior occurred here
|
= help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental
= help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information
= help: the accessed tag <TAG> has state Disabled which forbids this reborrow (acting as a child read access)
help: the accessed tag <TAG> was created here, in the initial state Reserved
--> tests/fail/tree_borrows/write-during-2phase.rs:LL:CC
|
LL | let res = f.add(unsafe {
| ^
help: the accessed tag <TAG> later transitioned to Disabled due to a foreign write access at offsets [0x0..0x8]
--> tests/fail/tree_borrows/write-during-2phase.rs:LL:CC
|
LL | *alias = 42;
| ^^^^^^^^^^^
= help: this transition corresponds to a loss of read and write permissions
= note: BACKTRACE (of the first span):
= note: inside `Foo::add` at tests/fail/tree_borrows/write-during-2phase.rs:LL:CC
note: inside `main`
--> tests/fail/tree_borrows/write-during-2phase.rs:LL:CC
|
LL | let res = f.add(unsafe {
| _______________^
LL | | // This is the access at fault, but it's not immediately apparent because
LL | | // the reference that got invalidated is not under a Protector.
LL | | *alias = 42;
LL | | 0
LL | | });
| |______^
note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
error: aborting due to 1 previous error
|
