Hi Alex,<br /><br />We may look into rust oe-selftest issues during coming week.<br />FYI... We did rust upgrade to 1.73.0 and we could still see the&nbsp;&nbsp;"-Z nightly build flag" failure&nbsp;issue (which was initially observed with rust 1.72.0 upgrade). We will send the patch by tomorrow and you can consider that for your analysis.<br /><br /><br />Thanks,<br />Sundeep K.