Reading package lists...
Building dependency tree...
Reading state information...
poppler-utils is already the newest version (0.86.1-0ubuntu1.1).
0 upgraded, 0 newly installed, 0 to remove and 11 not upgraded.
$ git checkout $SERIES_BRANCH
error: pathspec '16.0' did not match any file(s) known to git
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1

 28:3  ✖  Expected indentation of 4 spaces                                             indentation

28 problems (28 errors, 0 warnings)

Addon generic_mixin:FAIL
Processing addon test_generic_mixin ...
Addon test_generic_mixin:OK
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1