Soft-fail internal errors

[IanButterworth]

Fixes #70

cc. @KristofferC

[codecov]

Codecov Report

❌ Patch coverage is 54.16667% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 75.43%. Comparing base (542d964) to head (b9fc06e).

Files with missing lines	Patch %	Lines
src/workloads.jl	65.00%	7 Missing ⚠️
src/invalidations.jl	0.00%	4 Missing ⚠️

❗ There is a different number of reports uploaded between BASE (542d964) and HEAD (b9fc06e). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (542d964)	HEAD (b9fc06e)
	2	1

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #73      +/-   ##
==========================================
- Coverage   82.47%   75.43%   -7.04%     
==========================================
  Files           3        3              
  Lines          97      114      +17     
==========================================
+ Hits           80       86       +6     
- Misses         17       28      +11     

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