Git no space left on device

You're out of drive space. Delete some unused files from anywhere on your machine. After you've done some housecleaning, you may think about running git gc to have git garbage collect your repository; if you've made lots of changes to git's objects recently - like can happen with a rebase - you can reclaim significant data from git itself. After giving git some breathing room (as gc will need a little wiggle room to copy data to new files as it works), git gc will compact your git repository as much as is possible without losing your repository's history.

This is not an answer so much as a clarification of the problem and what the problem may actually be. I'm finding that GIT is spitting out this type of error code regularly when I have plenty of room on my Windows 8.1 system and drives.

After running 5 times and checking memory in Task Manager I found that each time system memory approached the max limit this error was triggered. It had nothing to do with available disk space, so while @Matt's answer may be correct for some cases, it's not correct for all of them.

Task Manager reports a low proportion of memory used by GIT, but each time GIT runs it ramps up the memory used. This problem appears to be related to a memory leak in GIT.