disable parallelism?

Author: mockersf

.github/workflows/ci.yml

@@ -120,7 +120,7 @@ jobs:
       - name: CI job
         # To run the tests one item at a time for troubleshooting, use
         # cargo --quiet test --lib -- --list | sed 's/: test$//' | MIRIFLAGS="-Zmiri-disable-isolation -Zmiri-disable-weak-memory-emulation" xargs -n1 cargo miri test -p bevy_ecs --lib -- --exact
-        run: cargo miri nextest run -p bevy_ecs --features bevy_utils/debug --partition count:${{ matrix.partition }}/${{ strategy.job-total }}
+        run: cargo miri nextest run -p bevy_ecs --features bevy_utils/debug --test-threads=1 --partition count:${{ matrix.partition }}/${{ strategy.job-total }}
         env:
           # -Zrandomize-layout makes sure we dont rely on the layout of anything that might change
           RUSTFLAGS: -Zrandomize-layout