When I tried running mkchromecast on OS X 10.11 or 10.6, the app crashes with an "Illegal instruction: 4" error.

It also generates this message in the Console:
5/27/16 5:38:39.333 PM com.apple.xpc.launchd[1]: (com.mkchromecast.osx.1974432[2842]) Service exited due to signal: Illegal instruction: 4

I've also attached the crash report below:
mkchromecast_2016-05-27-173851_Sergius-Mac-Pro.txt