analyze_core fails on truncated core

Running analyze_core against a core dump get the following error:

BFD: Warning: /tmp/backup/core.memcached.32750 is truncated: expected core file size >= 1891549184, found: 1891545088.
Failed to determine the binary name from the corefile

Note that if you run gdb directly against the core with the binary name we do get data back.