Currently rust_test does not support generating junit xml report out-of-the-box.

To support this for all rust test target, a workaround is with the --run_under flag and a script that writes the xml report from stdout to $XML_OUTPUT_FILE:

#!/bin/bash
$@ -Zunstable-options --format=junit --report-time | tee $XML_OUTPUT_FILE

The main downside is having to declare the script as a data dependency for every rust test target.

It would be nice to have built-in support for this in rust_test as an option, would it be sensible to add this to the rust test launcher?