nimble test fails with internal error
Run `nimble init` and fill in any package details you want, making sure to create a 'bin' package. 
Add a dependency.

Example nimble init file below.
```
# Package

version       = "0.1.0"
author        = "Eric Lee"
description   = "A new awesome nimble package"
license       = "MIT"
srcDir        = "src"
bin           = @["test"]

# Dependencies

requires "nim >= 0.17.3"
requires "jester > 0.1"
```

Run `nimble test --verbose`.
```
    Setting Nim stdlib prefix to /home/ebird/.local/opt/nim
    Setting Nim stdlib path to /home/ebird/.local/opt/nim/lib
  Executing task test in /home/ebird/test/test.nimble
    Setting Nim stdlib prefix to /home/ebird/.local/opt/nim
    Setting Nim stdlib path to /home/ebird/.local/opt/nim/lib
  Verifying dependencies for test@0.1.0
    Reading official package list
   Checking for jester@> 0.1
 Installing jester@> 0.1
    Reading official package list
Downloading https://github.com/dom96/jester using git
    Cloning latest tagged version: v0.2.0
    Setting Nim stdlib prefix to /home/ebird/.local/opt/nim
    Setting Nim stdlib path to /home/ebird/.local/opt/nim/lib
       Info ???(???, 0) Error: internal error: n is not nil
```

```
nimble v0.8.8 compiled at 2018-02-03 00:48:31
git hash: 0a205d38686bd257ddedcc1aab5a9e16ec753a11
```