Fix mutliple isolate borrows with #[stack_trace]

[littledivy]

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 95.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 81.68%. Comparing base (0c7f83e) to head (68101ba).
Report is 232 commits behind head on main.

Files with missing lines	Patch %	Lines
testing/checkin/runner/ops.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1044      +/-   ##
==========================================
+ Coverage   81.43%   81.68%   +0.24%     
==========================================
  Files          97      102       +5     
  Lines       23877    27909    +4032     
==========================================
+ Hits        19445    22797    +3352     
- Misses       4432     5112     +680     

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