Mull crashed with incorrect regex passed to --include-path

[ligurio]

How-to reproduce

sergeyb@pony:~/sources/mull_testing$ mull-cxx --include-path=*func1.c ./main
[info] Extracting bitcode from executable (threads: 1)
       [################################] 1/1. Finished in 1ms
[info] Loading bitcode files (threads: 3)
       [################################] 3/3. Finished in 12msterminate called after throwing an instance of 'std::regex_error'
  what():  regex_error
Aborted (core dumped)

With gdb:

(gdb) run --include-path=*func1.c ./main
Starting program: /usr/bin/mull-cxx --include-path=*func1.c ./main
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[info] Extracting bitcode from executable (threads: 1)
       [################################] 1/1. Finished in 1ms[New Thread 0x7ffff5a2b700 (LWP 2445803)]
[New Thread 0x7fffeffff700 (LWP 2445804)]
[New Thread 0x7ffff522a700 (LWP 2445805)]

[info] Loading bitcode files (threads: 3)
[New Thread 0x7ffff4a29700 (LWP 2445806)]
       [#####################-----------] 2/3[Thread 0x7fffeffff700 (LWP 2445804) exited]
[Thread 0x7ffff5a2b700 (LWP 2445803) exited]
[Thread 0x7ffff522a700 (LWP 2445805) exited]
       [################################] 3/3. Finished in 11ms[Thread 0x7ffff4a29700 (LWP 2445806) exited]
terminate called after throwing an instance of 'std::regex_error'
  what():  regex_error

Thread 1 "mull-cxx" received signal SIGABRT, Aborted.
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
50      ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb)

Version

Mull: LLVM-based mutation testing
https://github.com/mull-project/mull
Version: 0.10.0-trunk1
Commit: eed5960
Date: 22 Mar 2021
LLVM: 11.0.0