sample.instrcalls fails on x64 linux with unreachable rip-relative target (flaky?)

This test failed on the bot after an unrelated commit (in which all changes were under the non-default ANNOTATIONS build option). It passes on my local machine, so there appears to be flakiness: xref #1479 and #1326 (which are not related to DR tests, but appear to encounter the same issue).

```
144:
144:
152/167 Test #144: code_api|sample.instrcalls .............................***Failed Required regular expression not found.Regex=[^OK 1 CF
```