[BUG]: test_mrc_benchmarking intermittently hangs in CI

[dagardner-nv]

Version

25.06

Which installation method(s) does this occur on?

Source

Describe the bug.

This just hangs in CI, passes locally.

Minimum reproducible example

Remove the --exclude-regex "^test_mrc_benchmarking" flag introduced by PR #555

Relevant log output

N/A it just hangs, likely running build/cpp/mrc/tests/benchmarking/test_mrc_benchmarking.x directly will offer a better idea of which test in the suite is causing the hang.

Code of Conduct

• I agree to follow MRC's Code of Conduct
• I have searched the open bugs and have found no duplicates for this bug report