Here's what a `vagrant ssh -c 'echo lol'` executes, for comparison:
```
 INFO ssh: Executing SSH in subprocess: ["core@127.0.0.1", "-p", "2222", "-o", "Compression=yes", "-o", "DSAAuthentication=yes", "-o", "LogLevel=FATAL", "-o", "StrictHostKeyChecking=no", "-o", "UserKnownHostsFile=/dev/null", "-o", "IdentitiesOnly=yes", "-i", "/Users/carmstrong/.vagrant.d/insecure_private_key", "-t", "bash -l -c 'echo lol'"]
```