'ember new' command fails after initializing git. Are there detailed logs anywhere to look at?

I'm new to ember.js, and node, and npm. I'm having issues running the 'ember new my-project' command. I have a strong suspicion that i've screwed up directory permissions or something by installing something incorrectly but I don't know the best way to go about investigating that.

The environment is as follows: AWS EC2 instance, ubuntu 16.04, nodejs 7.5.0, and npm 4.2.0, bower 1.8.0, ember-cli 2.11.1.

npm, bower, ember were installed with -g and not using sudo as the ember.js docs recommend.

When I run the 'ember new my-project' command I get "Successfully initialized git" and then I get

Error creating new application. Removing generated directory `./my-project`
Command failed: /home/ubuntu/.npm-global/lib/node_modules/ember-cli/node_modules/npm/bin/npm-cli.js install --no-optional --loglevel error
npm WARN deprecated minimatch@2.0.10: Please update to minimatch 3.0.2 or higher to avoid a RegExp DoS issue

When I run ~ $ npm ls minimatch to check the minimatch piece of the error, i'm not seeing any modules are requiring 2.0.10 so i'm not sure where that is coming from. I'm also not sure if that is actually what's making the whole thing fail.

I also tried running npm install -g minimatch@3.0.2 but that just put it outside the npm@4.2.0 tree as you can see.

/home/ubuntu
├── minimatch@3.0.2
└─┬ npm@4.2.0
  ├─┬ fstream-npm@1.2.0
  │ └─┬ fstream-ignore@1.0.5
  │   └── minimatch@3.0.3
  ├─┬ glob@7.1.1
  │ └── minimatch@3.0.3
  ├─┬ init-package-json@1.9.4
  │ └─┬ glob@6.0.4
  │   └── minimatch@3.0.3
  ├─┬ node-gyp@3.5.0
  │ └── minimatch@3.0.3
  └─┬ read-package-json@2.0.4
    └─┬ glob@6.0.4
      └── minimatch@3.0.3

What i've tried so far is basically playing with versions - removing and reinstalling nodejs and npm, using different versions (docs and google have recommended different versions of node and npm for use with ember-cli.. I tried node 4.0.0 and npm 2.x.x and 3.x.x)

I also tried using ember-cli 2.11.0 because that version is working properly for in a local VM for me, and running the command with 'sudo'.

Is there a more detailed error log for npm or ember-cli somewhere I can look at? Can someone point me in the right direction to figure out what's going on here?