tokio-proto-0.1.1 beta regression

[est31]

tokio-proto version 0.1.1 test-regressed from stable to beta (full log):

Aug 17 00:59:55.398 INFO blam! ---- test_reaching_max_in_flight_requests stdout ----
Aug 17 00:59:55.398 INFO blam! 	thread 'test_reaching_max_in_flight_requests' panicked at 'assertion failed: `(left == right)`
Aug 17 00:59:55.398 INFO blam!   left: `32`,
Aug 17 00:59:55.398 INFO blam!  right: `33`', tests/test_multiplex_server.rs:261:4

cc @alexcrichton @carllerche

[alexcrichton]

I believe this is a spuriously failing test.