Can't create directory for build with windows-docker executor

Summary

The first time I run a CI task in a given repository (in this case, jakob/ci-test) on this runner, I get this error:

Fetching changes with git depth set to 50...
fatal: cannot chdir to c:/builds/jakob/ci-test: Permission denied
Cleaning up project directory and file based variables
00:04
ERROR: Job failed: exit code 128

Every subsequent time, I get fatal: cannot mkdir c:/builds/jakob/ci-test: File exists instead. That seems like it could be #1394 (closed) but it seems different enough that I'm filing this issue, feel free to tell me it's the same.

Steps to reproduce

1. set up a gitlab-runner instance (version 14.8.2 (c6e7e194)) on Microsoft Windows Server 2019 Standard (version 1809, OS build 17763.2686) against gitlab enterprise version 14.2.5-ee
2. register the gitlab runner with the docker-windows executor
3. run any CI job

What is the current bug behavior?

(described above)

What is the expected correct behavior?

The job executes