Archives Pipeline sporadically fails with errors messages, possibly due to resource mirroring

[ociaw]

I've finally got my Statiq Docs site to about where I want it, and I've setup CD on SourceHut. Sometimes it works great, everything gets built and deployed. Sometimes, however, the Archives Pipeline doesn't produce any output. I can't find any log messages during execution that suggest that there's an issue, even with Debug verbosity. At the end of a failed execution, I get messages

[CRIT] A task was canceled.
[INFO] To get more detailed logging output run with the "-l Debug" flag

with no other information. The execution summary and timeline seem to suggest that the error lies within the PostProcess phase since they don't have execution times. Reviewing the log, I found that the last messages from the Archives pipeline were

[DBUG] Archives/PostProcess » ExecuteSwitch » RenderContentPostProcessTemplates » ExecuteIf » MirrorResources » Downloading resource from https://cdn.jsdelivr.net/npm/lunr@2.3.9/lunr.min.js to mirror/cdn.jsdelivr.net/npm/lunr@2.3.9/lunr.min.js
(70,000 lines later)
[DBUG] Archives/Output » Skipping pipeline due to dependency error

suggesting that the error is possibly within the MirrorResources module. I'm unsure of why no error messages were generated though or how to diagnose the issue further, especially since it's seemingly impossible to reproduce reliably.

For reference, the site's source is here, using the Verdoct theme.