spurious test failure: rc::rc_from_vec_opt on window #104563
Description
failures: ---- rc::rc_from_vec_opt stdout ---- thread 'rc::rc_from_vec_opt' panicked at 'assertion failed: `(left == right)` left: `-169216`, right: `8`: Vector allocation not reused', library\alloc\tests\rc.rs:217:9 failures: rc::rc_from_vec_opt test result: FAILED. 652 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.29s Test was added in https://github.com/rust-lang/rust/pull/104205/files#diff-7c162f3385758481b661bb4120fe36635a2933c200bd7713a34ba9e47bac411fR220