Capital C is not considered as a valid disk for windows volumes
Summary
When you have a capital C as a drive the volume specification will fail to match.
This was also confirmed by another user in !1363 (comment 175836832)
Steps to reproduce
The .gitlab-ci.yml is not important here since it fails before the job is started.
Actual behavior
The job fails to start
Expected behavior
Job starts
Relevant logs and/or screenshots
job log
Running with gitlab-runner 11.12.0~beta.1532.g22b4c488 (22b4c488)
on windows-docker-2019 vGvfck1g
Using Docker executor with image mcr.microsoft.com/windows/servercore:1809 ...
ERROR: Preparation failed: invalid volume specification: "C:\\builds"
Will be retried in 3s ...
Using Docker executor with image mcr.microsoft.com/windows/servercore:1809 ...
ERROR: Preparation failed: invalid volume specification: "C:\\builds"
Will be retried in 3s ...
Using Docker executor with image mcr.microsoft.com/windows/servercore:1809 ...
ERROR: Preparation failed: invalid volume specification: "C:\\builds"
Will be retried in 3s ...
ERROR: Job failed (system failure): invalid volume specification: "C:\\builds"Environment description
config.toml contents
[[runners]]
name = "windows-docker-2019"
url = "http://192.168.1.79:3000/"
token = "vGvfck1gu-S8EZNfx8iK"
executor = "docker-windows"
[runners.docker]
tls_verify = false
image = "alpine:3.9"
privileged = false
disable_entrypoint_overwrite = false
oom_kill_disable = false
disable_cache = false
volumes = ["C:\\cache"]
shm_size = 0
[runners.cache]
[runners.cache.s3]
[runners.cache.gcs]
Used GitLab Runner version
Master branch