[Possibly a warning] a dist-upgrade on debian sid might break glibc/yr system

i just ~15:30 hrs utc dist-upgraded a debian sid box and it seems that it broke libc! /bin/sh not executable and booting into rescue sys i was not able chroot into the system (/bin/sh: no such file or directory) did anyone else run into this unfortunate situation? for anyone else: be at least cautious when you dist-upgrade sid for the next couple of hours...