failed unstripping libc

```
bin: run
libc: home/libc.so.6
ld: home/ld-linux.so

unstripping libc
https://launchpad.net/ubuntu/+archive/primary/+files//libc6-dbg_2.31-0ubuntu9.16_amd64.deb
warning: failed unstripping libc: libc deb error: failed to find file in data.tar
copying run to run_patched
running patchelf on run_patched
writing solve.py stub
```
This used to work but recently started failing.