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I've tried the run_designs.py script included in OpenLANE but got a few fatal errors (see reply). spm design and a minimal regression config was used. Did anyone run into this and have a suggested workaround, or can spot an issue with the command used?

Result from running:
```python3 run_designs.py -d spm -r /Users/dan.rodrigues/hw/caravel-vdp-lite/openlane/vdp_lite_user_proj/scripts/regression.config ```
<https://gist.github.com/dan-rodrigues/f26a02c8d05950b27350513553a05c82>

regression.config just contains:
```PL_TARGET_DENSITY=(0.32 0.33 0.34 0.35 0.36)```

Seems the script excpects something specific in the logs and doesn't find it causing some bash expression to fail.

<@U01E2KKE4SH> Looks like there might have been some changes in `report.sh`
`git diff origin/develop origin/master scripts/report/report.sh`
yields the following at around line 64
```-opendpUtil=$(grep "design util" $openDP_log -s | tail -1 | sed -E 's/.*: (\S+).*/\1/')
+opendpUtil=$(grep "utilization" $openDP_log -s | head -1 | sed -E 's/.* (\S+).*%/\1/')```
Maybe that's causing unexpected results.

Thanks, that'll be the first thing I check when I revisit this if I started getting antenna/DRC issues again