Commits on Feb 25, 2021

1. Allow oneshot::Receiver::close after successful try_recv …

   Before this commit `close` after successful `try_recv` panics.
   
   My use case is this: on drop, I call `close` to prevent pushing a
   message to the queue, and then fetch the message if any and process
   it.
   
   But if message is already processed, `close` panics.  And there is
   no API to know if message was already fetched or not (except for
   writing a wrapped which would track that info, which would be an
   overkill).
   
   But generally `close` operation should be safe to be called any
   time.

   

   stepancheg committed Feb 25, 2021
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