> [Tremblay:producer:(1) 0.000000] [s4u_test/INFO] Pushing 'one'
> [Jupiter:consumer:(2) 0.000000] [s4u_test/INFO] Receiving 'one'
> [Tremblay:producer:(1) 0.000000] [s4u_test/INFO] Pushing 'two'
> [Tremblay:producer:(1) 0.000000] [s4u_test/INFO] Pushing 'one'
> [Jupiter:consumer:(2) 0.000000] [s4u_test/INFO] Receiving 'one'
> [Tremblay:producer:(1) 0.000000] [s4u_test/INFO] Pushing 'two'