lazy.start() captured exception by default

[RainMark]

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What happened + What you expected to happen

lazy.start() captured exception by default and pass Try to user callback
user maybe forget to process exception, caused user's coroutine code can not finish, and the resource leaked.

make lazy.start() throw exception by default?

Reproduction way

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Are you willing to submit a PR?

• Yes I am willing to submit a PR!

[RainMark]

if user do not want to handle exception, they can use detach() , so we let user to decided by self