1task start 1 2task end 1 32 4---------- 5task start 2 6timeout 7---------- 8task_catch start 9ignore cancel 10task_catch done 11TimeoutError 12---------- 13task start 14ValueError 15---------- 16task start 3 17task end 3 186 19---------- 20task start 4 21task_cancel_other start 22task_cancel_other cancel 23CancelledError() 24---------- 25task_wait_for_cancel start 26task start 4 27task_wait_for_cancel cancelled 28---------- 29task_wait_for_cancel_ignore start 30task_catch start 31task_wait_for_cancel_ignore cancelled 32ignore cancel 33task_catch done 34---------- 35finish 36