diff --git a/Makefile b/Makefile
index 8d2165e08f..8020f4db5f 100644
--- a/Makefile
+++ b/Makefile
@@ -2450,7 +2450,7 @@ BUILD_SIG_NONBUILD_GOALS := \
 	clean-ext-libraries-bin \
 	format format-auto check-format check-buck-targets check-headers \
 	check-sources check-workflow-yaml check-progress clang-tidy \
-	tags tags0 package jclean checkout_folly \
+	tags tags0 package jclean checkout_folly build_folly \
 	watch-log dump-log suggest-slow-tests list_all_tests gen-pc \
 	gen_parallel_tests check-c-api-gen \
 	setup-hooks install-hooks uninstall-hooks uninstall db_crashtest_tests
diff --git a/tools/ldb_test.py b/tools/ldb_test.py
index d357e65812..8a40145eaf 100644
--- a/tools/ldb_test.py
+++ b/tools/ldb_test.py
@@ -787,7 +787,7 @@ class LDBTestCase(unittest.TestCase):
             # the appearance of an "00xxx.sst" pattern.
             sstLines = re.findall(r".*\d+.sst.*", data)
             for line in sstLines:
-                sstFilename = re.findall(r"\d+.sst", line)[0]
+                sstFilename = re.findall(r"\d+\.sst", line)[0]
                 sstLevel = re.findall(r"(?<=level )\d+", line)[0]
                 cf = re.findall(r"(?<=column family \')\w+(?=\')", line)[0]
                 testMap[sstFilename] = [sstLevel, cf]
diff --git a/util/rate_limiter_test.cc b/util/rate_limiter_test.cc
index 2ccec302eb..b379cb701c 100644
--- a/util/rate_limiter_test.cc
+++ b/util/rate_limiter_test.cc
@@ -410,6 +410,10 @@ TEST_F(RateLimiterTest, Rate) {
       true;
 #elif defined(OS_MACOSX)
       getenv("CIRCLECI") || getenv("GITHUB_ACTIONS");
+#elif defined(__aarch64__) || defined(__arm__)
+      // Unlike x86_64, the small/loaded ARM CI runners can't reliably sustain
+      // the target rate, so also exempt GitHub Actions here.
+      getenv("SANDCASTLE") || getenv("GITHUB_ACTIONS");
 #else
       getenv("SANDCASTLE");
 #endif