To reproduce:

1. Download attached project "CrashTest.zip" and open in Unity
2. Open "Test" scene
3. Enter to Play mode
Note: Observe that no error occurs on Console and everything is fine
4. Exit from Play mode
5. Again enter to Play mode

Expected Result: Everything still works fine
Actual Result: Console will spam a lot of errors and "Rewired" asset becomes corrupted

Notes:
- This issue appears only on .NET 4.6
- Errors that Console will spam:

Assertion failed: Assertion failed on expression: 'exception != SCRIPTING_NULL'
Couldn't extract exception string from exception (another exception of class 'ArgumentException' was thrown while processing the stack trace)

TypeLoadException: Error Loading class
System.Runtime.CompilerServices.RuntimeHelpers.RunClassConstructor (System.RuntimeTypeHandle type) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Runtime.CompilerServices/RuntimeHelpers.cs:89)
UnityEditor.EditorAssemblies.ProcessEditorInitializeOnLoad (System.Type type) (at C:/buildslave/unity/build/Editor/Mono/EditorAssemblies.cs:136)
UnityEditor.EditorAssemblies.ProcessInitializeOnLoadAttributes () (at C:/buildslave/unity/build/Editor/Mono/EditorAssemblies.cs:162)
UnityEditor.EditorAssemblies:ProcessInitializeOnLoadAttributes()

Unloading broken assembly Library/ScriptAssemblies/Assembly-CSharp-Editor.dll, this assembly can cause crashes in the runtime

TypeLoadException: Error Loading class
System.RuntimeType.GetMethodsByName (System.String name, System.Reflection.BindingFlags bindingAttr, System.Boolean ignoreCase, System.RuntimeType reflectedType) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/ReferenceSources/RuntimeType.cs:481)
System.RuntimeType.GetMethodCandidates (System.String name, System.Reflection.BindingFlags bindingAttr, System.Reflection.CallingConventions callConv, System.Type[] types, System.Boolean allowPrefixLookup) (at /Users/builduser/buildslave/mono/build/mcs/class/referencesource/mscorlib/system/rttype.cs:2825)
System.RuntimeType.GetMethods (System.Reflection.BindingFlags bindingAttr) (at /Users/builduser/buildslave/mono/build/mcs/class/referencesource/mscorlib/system/rttype.cs:3078)
UnityEditor.Build.BuildPipelineInterfaces.InitializeBuildCallbacks (UnityEditor.Build.BuildPipelineInterfaces+BuildCallbacks findFlags) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/BuildPipelineInterfaces.cs:182)

Reproduced on Unity 5.6.3f1, 2017.1.0p2, 2017.2.0b5 and 2017.3.0a2