try removing the --check-cfg flags

Author: RalfJung

run-test.sh

@@ -39,11 +39,6 @@ cp "$MIRI_LIB_SRC/../Cargo.lock" Cargo.lock
 # is just a re-export of the sysroot crate, so we don't get duplicate lang items.
 export MIRI_REPLACE_LIBRS_IF_NOT_TEST=1
 
-# core and std contain some modules that are also crates, so the feature flags are a bit all over
-# the place and we disable feature flag checking. (This matches what bootstrap does.)
-export RUSTFLAGS="--check-cfg=cfg(feature,values(any())) ${RUSTFLAGS:-}"
-export RUSTDOCFLAGS="--check-cfg=cfg(feature,values(any())) ${RUSTDOCFLAGS:-}"
-
 # run test
 export CARGO_TARGET_DIR=$(pwd)/target
 cargo miri test --manifest-path "library/$CRATE/Cargo.toml" "$@"

rust-version

@@ -1 +1 @@
-nightly-2024-05-18
+nightly-2024-05-23