Right now, if there is an error during the setup:di:compile process, all those errors are displayed in the output of the command-line.
Those errors are displayed with red background and they are repeated multiple times.
It would be great if we can see just the message that there were errors during compilation.
In addition to that, we could see the path to the log file and the number of errors that have been logged.
That would keep the command-line output clean, and the error information in a log file to debug.