Kryod
Kryod
Same issue
It's not failing because of syntax error in your APL test (maybe there are but it's not the problem), it's because Travis can't build the image rustacean-apl. It seems you...
I tested it doesn't work, same error as the one on the Travis CI . 
And for further information `COPY` can take files from the build context, not what's on the image.
Now your test doesn't pass because of a different reason: 