[Lilypond-auto] Patchy report from grenouille

[grenouille]

22:00:01 (UTC) Begin LilyPond compile, previous commit at       
a0077273ac8bf29ae472c8712bc78a02d138f898
22:00:12 *** FAILED STEP ***
        merge from translation
        Command '['git', 'branch', 'test-master-lock', 'master']' returned 
non-zero exit status 128
fatal: A branch named 'test-master-lock' already exists.