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This fixes the issues mentioned in #21236, as well as the one #21230 where
CFG_BOOTSTRAP_KEY
was being set to simply 'N'. It changes the build such thatRUSTC_BOOTSTRAP_KEY
is only exported on -beta and -stable, so that the behavior of the -dev, -nightly, and snapshot compilers is the same everywhere.Haven't run it completely through 'make check' yet, but the I have verified that the aforementioned issues are fixed.
r? @alexcrichton cc @eddyb