Fatal error in V8 GC

Version: v7.0.0
Platform: Darwin MacBook-Pro-3.local 16.1.0 Darwin Kernel Version 16.1.0: Thu Oct 13 21:26:57 PDT 2016; root:xnu-3789.21.3~60/RELEASE_X86_64 x86_64
Subsystem: V8

I upgraded to Node 7, cleaned node_modules and did npm install (3.10.8). Started a test run (around 4k tests) and it failed with the following a short way into the testsuite:

#
# Fatal error in ../deps/v8/src/execution.cc, line 103
# Check failed: AllowJavascriptExecution::IsAllowed(isolate).
#

==== C stack trace ===============================

    0   node                                0x0000000100b8db23 v8::base::debug::StackTrace::StackTrace() + 19
    1   node                                0x0000000100b8aca9 V8_Fatal + 233
    2   node                                0x00000001004ff8db v8::internal::(anonymous namespace)::Invoke(v8::internal::Isolate*, bool, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, int, v8::internal::Handle<v8::internal::Object>*, v8::internal::Handle<v8::internal::Object>) + 1499
    3   node                                0x00000001004ff2eb v8::internal::Execution::Call(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, int, v8::internal::Handle<v8::internal::Object>*) + 171
    4   node                                0x0000000100163e03 v8::Function::Call(v8::Local<v8::Context>, v8::Local<v8::Value>, int, v8::Local<v8::Value>*) + 643
    5   node                                0x0000000100a0020a node::ZCtx::~ZCtx() + 178
    6   node                                0x00000001009fff7a node::ZCtx::~ZCtx() + 14
    7   node                                0x000000010053d3c3 v8::internal::GlobalHandles::DispatchPendingPhantomCallbacks(bool) + 163
    8   node                                0x000000010053d6f1 v8::internal::GlobalHandles::PostGarbageCollectionProcessing(v8::internal::GarbageCollector, v8::GCCallbackFlags) + 49
    9   node                                0x000000010054ea4f v8::internal::Heap::PerformGarbageCollection(v8::internal::GarbageCollector, v8::GCCallbackFlags) + 2079
    10  node                                0x000000010054dca5 v8::internal::Heap::CollectGarbage(v8::internal::GarbageCollector, char const*, char const*, v8::GCCallbackFlags) + 949
    11  node                                0x000000010050a637 v8::internal::Factory::NewFixedArrayWithHoles(int, v8::internal::PretenureFlag) + 103
    12  node                                0x000000010062fdec v8::internal::MaybeGrow(v8::internal::Isolate*, v8::internal::Handle<v8::internal::FixedArray>, int, int) + 60
    13  node                                0x000000010062f0d0 v8::internal::Isolate::CaptureSimpleStackTrace(v8::internal::Handle<v8::internal::JSReceiver>, v8::internal::FrameSkipMode, v8::internal::Handle<v8::internal::Object>) + 3920
    14  node                                0x0000000100630774 v8::internal::Isolate::CaptureAndSetSimpleStackTrace(v8::internal::Handle<v8::internal::JSReceiver>, v8::internal::FrameSkipMode, v8::internal::Handle<v8::internal::Object>) + 36
    15  node                                0x000000010066aed8 v8::internal::ErrorUtils::Construct(v8::internal::Isolate*, v8::internal::Handle<v8::internal::JSFunction>, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, v8::internal::FrameSkipMode, v8::internal::Handle<v8::internal::Object>, bool) + 216
    16  node                                0x000000010020026c v8::internal::Builtin_ErrorConstructor(int, v8::internal::Object**, v8::internal::Isolate*) + 300
    17  ???                                 0x0000360fd5e06167 0x0 + 59441640661351
Illegal instruction: 4