isolate librustc_metadata
regression using NLL
#48623
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librustc_metadata
regression using NLL
#48623
If you start from my nll-bootstrap branch and try to build rustc with NLL enabled, like so:
You will find that it dies here:
It would be great if somebody were able to help isolate this into a standalone test case! This basically involves extract code from the environment until we reproduce the error.
I took a stab at it but did not yet finish. This gist contains my intermediate results:
https://gist.github.com/nikomatsakis/f2103b4c3f4299a77e8eb472b236d985
cc @rust-lang/wg-compiler-nll -- It'd be great if somebody wanted to take this on! This is a fairly high priority item, because I would like to get the point where we are able to bootstrap rustc and hence know all of the issues that arise!
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