Segmentation fault

[sasha-x]

I see it often on current version.

root@:~/tmp/eschalot# ./eschalot -vt4 -n -p 'ras'
Verbose, single result, digits ok, 4 threads, prefixes 3-3 characters long.
Thread #1 started.
Thread #2 started.
Thread #3 started.
Thread #4 started.
Running, collecting performance data...
Found a key for ras (3) - ..<skip>..onion
----------------------------------------------------------------
<skip>.onion
-----BEGIN RSA PRIVATE KEY-----
<skip>
-----END RSA PRIVATE KEY-----
Segmentation fault (core dumped)

Info:

# ll
total 772
drwxr-xr-x 3 root root   4096 апр 29 14:56 ./
drwxr-xr-x 4 alex alex   4096 апр 29 12:55 ../
-rw-r--r-- 1 root root   3314 апр 29 12:55 CHANGELOG
-rwxr-xr-x 1 root root  29016 апр 29 13:08 eschalot*
-rw-r--r-- 1 root root  25991 апр 29 12:55 eschalot.c
drwxr-xr-x 8 root root   4096 апр 29 12:55 .git/
-rw-r--r-- 1 root root   3685 апр 29 12:55 LICENSE
-rw-r--r-- 1 root root   1809 апр 29 12:55 Makefile
-rw-r--r-- 1 root root 622442 апр 29 12:55 nouns.txt
-rw-r--r-- 1 root root  16817 апр 29 12:55 README
-rw-r--r-- 1 root root    976 апр 29 14:44 results.txt
-rw-r--r-- 1 root root   6139 апр 29 12:55 top1000.txt
-rw-r--r-- 1 root root    980 апр 29 12:55 top150adjectives.txt
-rw-r--r-- 1 root root   2678 апр 29 12:55 top400nouns.txt
-rw-r--r-- 1 root root   3545 апр 29 12:55 typecard.c
-rw-r--r-- 1 root root     79 апр 29 14:58 wordlist2.txt
-rw-r--r-- 1 root root   5634 апр 29 14:56 wordlist.txt
-rwxr-xr-x 1 root root  13376 апр 29 13:08 worgen*
-rw-r--r-- 1 root root   6809 апр 29 12:55 worgen.c
~/tmp/eschalot# uname -a
Linux dell-7720 4.15.0-70-generic #79-Ubuntu SMP Tue Nov 12 10:36:11 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
~/tmp/eschalot# lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 18.04.3 LTS
Release:	18.04
Codename:	bionic