Symlinks, relative path in CI

Hello!

I use gitlab 9.2.5 and gitlab-ci-multi-runner 9.2.0 with docker 17.03.0-ce
.gitlab-ci.yml: https://pastebin.com/fBxXugED
Current results: https://pastebin.com/6stQYFku
Last line expected to show content of _build, but I see content of $CI_PROJECT_DIR/..

Please, anybody help me to understand how it works)

same with shell-executor
Is any gitlab magic to translate relpath?