std: Don't fail the task when a Future is dropped #14941
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src/libstd/sync/future.rs
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Clever use of TLS. I didn't realize you could use it that way to find out if the task exited due to failure or not.
Seems to me you can skip the atomics though, and just use a separate channel. Have Bomb send task::failing() across a channel and read it on the other side.
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Sounds like a good idea!
It's a benign failure that no one needs to know about. Closes rust-lang#14892
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Shrink `DefMap`, share crate level items with block def maps
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It's a benign failure that no one needs to know about.
Closes #14892