Flaky test: //score/mw/com/test/move_semantics/skeleton_method/integration_test:move_assign_before_offered_skeleton_different_process_test

## Flaky test: `//score/mw/com/test/move_semantics/skeleton_method/integration_test:move_assign_before_offered_skeleton_different_process_test`

**Cumulative failed runs observed:** 4 (over 400 total runs, 4 nightlies)
**First seen:** 2026-08-31 · **Last seen:** 2026-09-13

### Per-config cumulative

| Config | Failed | Total |
|--------|-------:|------:|
| gcc15-integration | 4 | 400 |

```json
{
"configs": {
"gcc15-integration": {
"failed_runs": 4,
"total_runs": 400
}
},
"cumulative_failed_runs": 4,
"cumulative_total_runs": 400,
"first_seen": "2026-08-31",
"last_seen": "2026-09-13",
"nightly_count": 4,
"target": "//score/mw/com/test/move_semantics/skeleton_method/integration_test:move_assign_before_offered_skeleton_different_process_test"
}
```

Start by running //score/mw/com/test/move_semantics/skeleton_method/integration_test:move_assign_before_offered_skeleton_different_process_test under the gcc15-integration configuration and inspect its failure output. Review the move-semantics skeleton-method integration test and the four recorded nightly failures. Done means the test passes reliably without recurring flaky failures.

Written by the indexing model from the issue text.