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std: Add a `backtrace` module #64154
This commit adds a
Additionally this commit also adds a
Implementation-wise this is all based on the
Logistically I want #64152 to land before this, and then I want to leverage that to ensure that the standard library only has one piece of code for printing backtraces instead of both here and for panics.
(in case anyone's wondering why it's duplicated here)
This is nice functionality, but because it is added directly to
Can we consider doing this differently so that these PR's are still compatible? It would really help rust portability if
I think one good way might be to make a
There are a few other ways I thought about, you probably can think of more than I can.
Sep 11, 2019
This PR broke xargo, or at least the Xargo configuration used by Miri:
@alexcrichton is it possible that libstd no longer compiles with the default features?
EDIT: Ah, this was already reported at #64410.