Заставляю gitlab runner билдить проект, вылезает непонятная ошибка, с чем это связано?

At C:\Windows\TEMP\build_script053653919\script.ps1:165 char:3
+ if [[ -z "$CI_COMMIT_TAG" ]]; then
+   ~
Missing '(' after 'if' in if statement.
At C:\Windows\TEMP\build_script053653919\script.ps1:165 char:5
+ if [[ -z "$CI_COMMIT_TAG" ]]; then
+     ~
Missing type name after '['.
    + CategoryInfo          : ParserError: (:) [], ParseException
    + FullyQualifiedErrorId : MissingOpenParenthesisInIfStatement
 
section_end:1611635453:build_script
section_start:1611635453:upload_artifacts_on_failure
section_end:1611635454:upload_artifacts_on_failure
ERROR: Job failed: exit status 1