As per https://github.com/coala/corobo/pull/650/files we use latest coala-bears to fix the issues with the semaphore CI. But we expected it to be handling coala on its own as it is its requirement. But we found that it wasn't using latest coala master and was using coala release instead. See https://github.com/coala/coala-bears/issues/2894. Hence, to fix this we need to specify the coala master explicitly.
As per https://github.com/coala/corobo/pull/650/files we use latest coala-bears to fix the issues with the semaphore CI. But we expected it to be handling coala on its own as it is its requirement. But we found that it wasn't using latest coala master and was using coala release instead. See https://github.com/coala/coala-bears/issues/2894. Hence, to fix this we need to specify the coala master explicitly.