Failures during installation, but still installs

[webstractions]

Not sure if this is an issue with my connection, GitHub, Windows 7, or a combination of all three. There are three fatal errors during the installation, but then it magically creates the project.

First error is a failure to clone via SSH
Second is a bug " initial ref transaction called with existing refs"
Third is for permissions and access rights (weird one)

> create-project roots/sage Sage954 dev-master

Installing roots/sage (dev-master b4421be2696bd6021a11eb6893bb6fbb8a949d15)
  - Installing roots/sage (dev-master master) Cloning master from cache
    Failed to download roots/sage from source: Failed to clone https://github.com/roots/sage.git via https,
 ssh protocols, aborting.

- https://github.com/roots/sage.git
  Cloning into 'C:\xampp\htdocs\sites\webstractions\wp\wp-content\themes\Sage954'...
  fatal: BUG: initial ref transaction called with existing refs

- [email protected]:roots/sage.git
  Cloning into 'C:\xampp\htdocs\sites\webstractions\wp\wp-content\themes\Sage954'...
  Permission denied (publickey).
  fatal: Could not read from remote repository.

  Please make sure you have the correct access rights
  and the repository exists.

    Now trying to download from dist
  - Installing roots/sage (dev-master master) Downloading: 100%
Created project in Sage954
Loading composer repositories with package information
Installing dependencies (including require-dev) from lock file
Package operations: 26 installs, 0 updates, 0 removals
  - Installing composer/installers (v1.4.0) Loading from cache
  - Installing paragonie/random_compat (v2.0.10) Loading from cache
  - Installing illuminate/contracts (v5.4.27) Loading from cache
  - Installing doctrine/inflector (v1.2.0) Loading from cache
  - Installing illuminate/support (v5.4.27) Loading from cache

There is another issue for post-install, but I will create a separate issue for that.