The "or rename" part was removed from the error-message, because renaming wasn't possible at the time. Now that https://github.com/docker/docker/pull/8570 is merged, renaming existing containers is possible. Signed-off-by: Sebastiaan van Stijn <github@gone.nl> Upstream-commit: 78820a63d647276cf17dac9ac71ed2beb19f285d Component: engine