Memory leak / JavaScript heap out of memory
I get this (or similar) every few hours of running `ream dev`:

```
<--- Last few GCs --->

[11102:0x105000000] 22881587 ms: Mark-sweep 1379.7 (1426.5) -> 1379.6 (1429.0) MB, 520.9 / 0.0 ms  allocation failure GC in old space requested
[11102:0x105000000] 22882282 ms: Mark-sweep 1379.6 (1429.0) -> 1379.6 (1411.0) MB, 694.6 / 0.0 ms  last resort GC in old space requested
[11102:0x105000000] 22882916 ms: Mark-sweep 1379.6 (1411.0) -> 1379.6 (1411.0) MB, 634.6 / 0.0 ms  last resort GC in old space requested


<--- JS stacktrace --->

==== JS stack trace =========================================

    0: ExitFrame [pc: 0x38888d80427d]
Security context: 0x168246620769 <JSObject>
    1: fromString(aka fromString) [buffer.js:349] [bytecode=0x1682cccd5a81 offset=148](this=0x1682db2822e1 <undefined>,string=0x1682f8ec0671 <Very long string[2015095]>,encoding=0x168246632879 <String[4]: utf8>)
    2: from [buffer.js:201] [bytecode=0x1682cccd5601 offset=11](this=0x168279046b39 <JSFunction Buffer (sfi = 0x168206f0a441)>,value=0x1682f8ec0671 ...

FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory
 1: node::Abort() [/usr/local/Cellar/node/10.3.0/bin/node]
 2: node::OnFatalError(char const*, char const*) [/usr/local/Cellar/node/10.3.0/bin/node]
 3: v8::Utils::ReportOOMFailure(char const*, bool) [/usr/local/Cellar/node/10.3.0/bin/node]
 4: v8::internal::V8::FatalProcessOutOfMemory(char const*, bool) [/usr/local/Cellar/node/10.3.0/bin/node]
 5: v8::internal::Factory::NewRawTwoByteString(int, v8::internal::PretenureFlag) [/usr/local/Cellar/node/10.3.0/bin/node]
 6: v8::internal::String::SlowFlatten(v8::internal::Handle<v8::internal::ConsString>, v8::internal::PretenureFlag) [/usr/local/Cellar/node/10.3.0/bin/node]
 7: v8::String::WriteUtf8(char*, int, int*, int) const [/usr/local/Cellar/node/10.3.0/bin/node]
 8: node::StringBytes::Write(v8::Isolate*, char*, unsigned long, v8::Local<v8::Value>, node::encoding, int*) [/usr/local/Cellar/node/10.3.0/bin/node]
 9: node::Buffer::New(v8::Isolate*, v8::Local<v8::String>, node::encoding) [/usr/local/Cellar/node/10.3.0/bin/node]
10: node::Buffer::(anonymous namespace)::CreateFromString(v8::FunctionCallbackInfo<v8::Value> const&) [/usr/local/Cellar/node/10.3.0/bin/node]
11: v8::internal::FunctionCallbackArguments::Call(v8::internal::CallHandlerInfo*) [/usr/local/Cellar/node/10.3.0/bin/node]
12: v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<false>(v8::internal::Isolate*, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::FunctionTemplateInfo>, v8::internal::Handle<v8::internal::Object>, v8::internal::BuiltinArguments) [/usr/local/Cellar/node/10.3.0/bin/node]
13: v8::internal::Builtin_Impl_HandleApiCall(v8::internal::BuiltinArguments, v8::internal::Isolate*) [/usr/local/Cellar/node/10.3.0/bin/node]
14: 0x38888d80427d
15: 0x38888d8144f7
16: 0x38888d8144f7
17: 0x38888d80cac3
18: 0x38888d8144f7
19: 0x38888d80cac3
20: 0x38888d8144f7
21: 0x38888d8144f7
error Command failed with signal "SIGABRT".
```

I have *never* seen anything similar on any other Node.js project (including `vue-cli` or `nuxt`). I tried upgrading from Node 10.0 to Node 10.3 and it made no difference.

I understand that unless you can repeat this, there's not much use of this report. I wanted to leave it there just in case if other people start getting this too, we could at least boldly confirm the issue, or even coordinate somehow.