I became a committer a few weeks ago but when I tried to do a drover cherry-pick today I got the following error message, after presubmit checks passed & review uploaded:

Failed to push. If this persists, please file a bug.
 2 files changed, 5 insertions(+), 2 deletions(-)   │Error: Command 'cl land --bypass-hooks' failed: Command '['git', 'cl', 'land', '--bypass-hooks']' returned non-zero exit 

I wonder if this is because I have not yet been added to the  chromium-comimtters gerrit group, as hinted by instructions at http://www.chromium.org/developers/how-tos/drover , since a colleague successfully landed the commit with the same command.