Test rust-analyzer in CI

Author: cuviper

src/ci/docker/host-x86_64/x86_64-gnu-tools/checktools.sh

@@ -15,6 +15,7 @@ python3 "$X_PY" test --stage 2 --no-fail-fast \
     src/doc/embedded-book \
     src/doc/edition-guide \
     src/tools/rls \
+    src/tools/rust-analyzer \
     src/tools/miri \
 
 set -e