Enable -Z randomize-layout in miri CI

ci/crossbeam-epoch-loom.sh

@@ -3,7 +3,7 @@ set -euxo pipefail
 IFS=$'\n\t'
 cd "$(dirname "$0")"/../crossbeam-epoch
 
-export RUSTFLAGS="-D warnings --cfg crossbeam_loom --cfg crossbeam_sanitize"
+export RUSTFLAGS="${RUSTFLAGS:-} --cfg crossbeam_loom --cfg crossbeam_sanitize"
 
 # With MAX_PREEMPTIONS=2 the loom tests (currently) take around 11m.
 # If we were to run with =3, they would take several times that,

ci/miri.sh

@@ -3,6 +3,8 @@ set -euxo pipefail
 IFS=$'\n\t'
 cd "$(dirname "$0")"/..
 
+export RUSTFLAGS="${RUSTFLAGS:-} -Z randomize-layout"
+
 MIRIFLAGS="-Zmiri-check-number-validity -Zmiri-symbolic-alignment-check -Zmiri-tag-raw-pointers" \
     cargo miri test \
     -p crossbeam-queue

ci/san.sh

@@ -14,25 +14,25 @@ rustup component add rust-src
 # `cfg(crossbeam_sanitize)` with `cfg(sanitize = "..")` and remove
 # `--cfg crossbeam_sanitize`.
 cargo clean
-RUSTFLAGS="-Dwarnings -Zsanitizer=address --cfg crossbeam_sanitize" \
-cargo test --all --release --target x86_64-unknown-linux-gnu --tests \
+RUSTFLAGS="${RUSTFLAGS:-} -Z sanitizer=address --cfg crossbeam_sanitize" \
+    cargo test --all --release --target x86_64-unknown-linux-gnu --tests \
     --exclude crossbeam-skiplist --exclude benchmarks -- --test-threads=1
 
 # There are memory leaks in crossbeam-skiplist.
 # https://github.com/crossbeam-rs/crossbeam/issues/614
 cargo clean
-RUSTFLAGS="-Dwarnings -Zsanitizer=address --cfg crossbeam_sanitize" \
-cargo test --release --target x86_64-unknown-linux-gnu \
+RUSTFLAGS="${RUSTFLAGS:-} -Z sanitizer=address --cfg crossbeam_sanitize" \
+    cargo test --release --target x86_64-unknown-linux-gnu \
     -p crossbeam-skiplist --test map --test set
 cargo clean
 ASAN_OPTIONS="detect_leaks=0" \
-RUSTFLAGS="-Dwarnings -Zsanitizer=address --cfg crossbeam_sanitize" \
-cargo test --release --target x86_64-unknown-linux-gnu \
+    RUSTFLAGS="${RUSTFLAGS:-} -Z sanitizer=address --cfg crossbeam_sanitize" \
+    cargo test --release --target x86_64-unknown-linux-gnu \
     -p crossbeam-skiplist --tests
 
 cargo clean
-RUSTFLAGS="-Dwarnings -Zsanitizer=address --cfg crossbeam_sanitize" \
-cargo run \
+RUSTFLAGS="${RUSTFLAGS:-} -Z sanitizer=address --cfg crossbeam_sanitize" \
+    cargo run \
     --release \
     --target x86_64-unknown-linux-gnu \
     --features nightly \
@@ -41,11 +41,11 @@ cargo run \
 
 # Run memory sanitizer
 cargo clean
-RUSTFLAGS="-Dwarnings -Zsanitizer=memory --cfg crossbeam_sanitize" \
-cargo test -Zbuild-std --all --release --target x86_64-unknown-linux-gnu --tests --exclude benchmarks -- --test-threads=1
+RUSTFLAGS="${RUSTFLAGS:-} -Z sanitizer=memory --cfg crossbeam_sanitize" \
+    cargo test -Z build-std --all --release --target x86_64-unknown-linux-gnu --tests --exclude benchmarks -- --test-threads=1
 
 # Run thread sanitizer
 cargo clean
 TSAN_OPTIONS="suppressions=$(pwd)/ci/tsan" \
-RUSTFLAGS="-Dwarnings -Zsanitizer=thread --cfg crossbeam_sanitize" \
-cargo test -Zbuild-std --all --release --target x86_64-unknown-linux-gnu --tests --exclude benchmarks -- --test-threads=1
+RUSTFLAGS="${RUSTFLAGS:-} -Z sanitizer=thread --cfg crossbeam_sanitize" \
+    cargo test -Z build-std --all --release --target x86_64-unknown-linux-gnu --tests --exclude benchmarks -- --test-threads=1

ci/test.sh

@@ -3,8 +3,6 @@ set -euxo pipefail
 IFS=$'\n\t'
 cd "$(dirname "$0")"/..
 
-export RUSTFLAGS="-D warnings"
-
 if [[ -n "${RUST_TARGET:-}" ]]; then
     # If RUST_TARGET is specified, use cross for testing.
     cross test --all --target "$RUST_TARGET" --exclude benchmarks -- --test-threads=1