Autograder [Fri May  1 03:49:44 2020]: Received job 11785-s20_hw4p1_1_knerella@andrew.cmu.edu:703
Autograder [Fri May  1 03:49:59 2020]: Success: Autodriver returned normally
Autograder [Fri May  1 03:49:59 2020]: Here is the output from the autograder:
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Autodriver: Job exited with status 2
mkdir -p handin
tar xf handin.tar -C handin
tar: This does not look like a tar archive
tar: Skipping to next header
tar: Exiting with failure status due to previous errors
make: *** [autograde] Error 2