User picked target 'bickadoodle-win' (gameid 'wintermute')...
  Looking for a plugin supporting this gameid... Wintermute
  Starting 'Wintermute engine game'
scummvm: ../../src-master/src/common/str.h:190: char Common::String::operator[](int) const: Assertion `_str && idx >= 0 && idx < (int)_size' failed.

Program received signal SIGABRT, Aborted.
0x00007ffff4b8c478 in raise () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0  0x00007ffff4b8c478 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff4b8d8fa in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff4b853a7 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff4b85452 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x000000000040a380 in Common::String::operator[] (this=0x7fffffffbbd0, 
    idx=-1) at ../../src-master/src/common/str.h:190
#5  0x0000000001a9b302 in Wintermute::PathUtil::getFileName (path=...)
    at ../../src-master/src/engines/wintermute/utils/path_util.cpp:77
#6  0x0000000001a9b3f5 in Wintermute::PathUtil::getExtension (path=...)
    at ../../src-master/src/engines/wintermute/utils/path_util.cpp:97
#7  0x0000000001a58edf in Wintermute::BaseSoundMgr::addSound (this=0x31d0d50, 
    filename=..., type=Audio::Mixer::kMusicSoundType, streamed=true)
    at ../../src-master/src/engines/wintermute/base/sound/base_sound_manager.cpp:104
#8  0x0000000001a5705a in Wintermute::BaseSound::setSound (this=0x358fb20, 
    filename=..., type=Audio::Mixer::kMusicSoundType, streamed=true)
    at ../../src-master/src/engines/wintermute/base/sound/base_sound.cpp:70
#9  0x0000000001a6d964 in Wintermute::BaseGameMusic::playMusic (
    this=0x2cc41e0, channel=1, filename=0x37b7550 "", looping=true, 
    loopStart=0)
    at ../../src-master/src/engines/wintermute/base/base_game_music.cpp:73
#10 0x0000000001a6e37d in Wintermute::BaseGameMusic::scCallMethod (
    this=0x2cc41e0, script=0x4e36c00, stack=0x49ada50, thisStack=0x49b1c50, 
---Type <return> to continue, or q <return> to quit---q
nameQuit
(gdb) quit