Local invoke in a Windows environment hangs at "Wrapping IOpipe" with no output

[fastfiveoh]

Description
Using a typical development environment of Windows 10 x64, fully patched, with Gitbash, when trying to use sls invoke local it just hangs at "Wrapping IOpipe". You have to kill the process and you get no log output.

If you just ship using sls deploy the deploy wraps the function fine and sends it to AWS Lambda`

Steps to reproduce the issue:

1. Use a windows (non Linux Windows) dev env
2. Run sls invoke local
3. Command hangs

Describe the results you received:
See above

Describe the results you expected:
I expected the wrapping to finish the the invoke to happen locally

Application and library versions

Please list:

• version of the Serverless Framework.
  $ sls --version
  1.27.3

• version of @iopipe/iopipe
  +-- @iopipe/iopipe@1.7.0
  | +-- @iopipe/config@1.1.0
  | | +-- @iopipe/event-info@1.1.0
  | | | +-- flat@4.0.0
  | | | | -- is-buffer@1.1.6 | | | -- lodash.get@4.4.2
  | | -- @iopipe/trace@1.0.0 | | -- performance-node@0.2.0
  | `-- @iopipe/core@1.11.1

• version of serverless-plugin-iopipe
  Pulled from master

• any other serverless framework plugins enabled
  --> none