- Create new Unity project
- Open Build Settings
- Select Webplayer and check the Development Build and AutoConnect Profiler boxes
- Press Build and Run

Unity crashes with
ExecutionEngineException: SIGILL
at (wrapper managed-to-native) UnityEditor.BuildPipeline:BuildPlayerInternalNoCheck (string[],string,UnityEditor.BuildTarget,UnityEditor.BuildOptions,bool,uint&)
at UnityEditor.BuildPlayerWindow.BuildPlayerWithDefaultSettings (Boolean askForBuildLocation, BuildOptions forceOptions, Boolean first) [0x00000] in <filename unknown>:0
at UnityEditor.BuildPlayerWindow.BuildPlayerWithDefaultSettings (Boolean askForBuildLocation, BuildOptions forceOptions) [0x00000] in <filename unknown>:0
at UnityEditor.BuildPlayerWindow.GUIBuildButtons (Boolean enableBuildButton, Boolean enableBuildAndRunButton, Boolean canInstallInBuildFolder, UnityEditor.BuildPlatform platform) [0x00000] in <filename unknown>:0
at UnityEditor.BuildPlayerWindow.ShowBuildTargetSettings () [0x00000] in <filename unknown>:0
at UnityEditor.BuildPlayerWindow.OnGUI () [0x00000] in <filename unknown>:0
at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (object,object[],System.Exception&)
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x000d0] in /Users/builduser/buildslave/monoAndRuntimeClassLibs/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:222
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x000eb] in /Users/builduser/buildslave/monoAndRuntimeClassLibs/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:232
at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in /Users/builduser/buildslave/monoAndRuntimeClassLibs/build/mcs/class/corlib/System.Reflection/MethodBase.cs:115
at UnityEditor.HostView.Invoke (System.String methodName, System.Object obj) [0x00000] in <filename unknown>:0
at UnityEditor.HostView.Invoke (System.String methodName) [0x00000] in <filename unknown>:0
at UnityEditor.HostView.OnGUI () [0x00000] in <filename unknown>:0

(Filename: /Users/builduser/buildslave/monoAndRuntimeClassLibs/build/mcs/class/corlib/System.Reflection/MonoMethod.cs Line: 222)