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Auto merge of #124405 - RalfJung:miri-core-alloc-tests, r=clubby789

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miri core/alloc tests: do not test a 2nd target

check-aux seems to be one of the slowest runners since we started running standard library tests in Miri on it. So maybe it'd be better to reduce test coverage a bit by not doing cross-target testing of core and alloc? I don't recall finding target-specific issues in these libraries ever (and we still have the extra test coverage via our [out-of-tree nightly tests](https://github.com/rust-lang/miri-test-libstd)). This gives us more buffer to deal with the fact that the number of tests we run will only grow over time.

Cc `@rust-lang/miri` `@rust-lang/infra`
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bors 2024-04-27 18:45:51 +00:00
commit 825e831dc3
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src/bootstrap/mk/Makefile.in
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@ -53,15 +53,12 @@ check-aux:
src/tools/cargotest \
$(BOOTSTRAP_ARGS)
# Run standard library tests in Miri.
# We use a 64bit little-endian and a 32bit big-endian target for max coverage.
$(Q)BOOTSTRAP_SKIP_TARGET_SANITY=1 \
$(BOOTSTRAP) miri --stage 2 \
--target x86_64-unknown-linux-gnu,mips-unknown-linux-gnu \
library/core \
library/alloc \
--no-doc
# Some doctests have intentional memory leaks.
# Also, they work only on the host.
$(Q)MIRIFLAGS="-Zmiri-ignore-leaks -Zmiri-disable-isolation" \
$(BOOTSTRAP) miri --stage 2 \
library/core \