Speed of Crystal

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$ time crystal hello_world.cr
Hello World!

real  0m1.108s
user  0m1.268s
sys   0m0.271s

$ time crystal build hello_world.cr -o hw

real   0m1.108s
user   0m1.323s
sys    0m0.238s

$ time ./hw
Hello World!

real   0m0.013s
user   0m0.001s
sys    0m0.011s