Test (bash) giving false positive

Drone Support
1

Background

We use a bash script to do Toctree Validation.

Running this test locally as container

docker run -it -v `pwd`:/build/docs testthedocs/ttd-toctree

Checking for nested toctree entries 
foobar.rst
11:   :numbered:
Found one or more numbering entry, ':numbered:' is only allowed once in index.rst

works perfectly.

Running this test locally without container, meaning only the script without docker is working, too:

../testtoctrees.sh
Checking for nested toctree entries 
foobar.rst
11:   :numbered:
Found one or more numbering entry, ':numbered:' is only allowed once in index.rst

But running it on drone, gives false results:

/drone/src/github.com/testthedocs/ttd.docs-example/docs
/bin/bash testtoctree.sh
Checking for nested toctree entries 
Looks great ! Awesome !

Here is the part of our .drone,yaml

pipeline:
  test-toc:
    image: testthedocs/ttd-toctree
    commands:
      - cd /drone/src/github.com/testthedocs/ttd.docs-example/docs && pwd
      - /bin/bash testtoctree.sh

Any hints would be highly appreciated !
Thanks !