diff --git a/libcxx/test/std/utilities/format/format.range/format.range.fmtdef/format.pass.cpp b/libcxx/test/std/utilities/format/format.range/format.range.fmtdef/format.pass.cpp
--- a/libcxx/test/std/utilities/format/format.range/format.range.fmtdef/format.pass.cpp
+++ b/libcxx/test/std/utilities/format/format.range/format.range.fmtdef/format.pass.cpp
@@ -74,8 +74,9 @@
   std::array<parse_call_validator, 2> arg;
 
   String result;
-  OutIt out             = std::back_inserter(result);
-  FormatCtxT format_ctx = test_format_context_create<OutIt, CharT>(out, std::make_format_args<FormatCtxT>(arg));
+  OutIt out = std::back_inserter(result);
+  [[maybe_unused]] FormatCtxT format_ctx =
+      test_format_context_create<OutIt, CharT>(out, std::make_format_args<FormatCtxT>(arg));
 
   { // parse not called
     [[maybe_unused]] const std::formatter<decltype(arg), CharT> formatter;
diff --git a/libcxx/test/std/utilities/format/format.range/format.range.fmtmap/format.pass.cpp b/libcxx/test/std/utilities/format/format.range/format.range.fmtmap/format.pass.cpp
--- a/libcxx/test/std/utilities/format/format.range/format.range.fmtmap/format.pass.cpp
+++ b/libcxx/test/std/utilities/format/format.range/format.range.fmtmap/format.pass.cpp
@@ -77,8 +77,9 @@
   std::map<parse_call_validator, parse_call_validator> arg{{parse_call_validator{}, parse_call_validator{}}};
 
   String result;
-  OutIt out             = std::back_inserter(result);
-  FormatCtxT format_ctx = test_format_context_create<OutIt, CharT>(out, std::make_format_args<FormatCtxT>(arg));
+  OutIt out = std::back_inserter(result);
+  [[maybe_unused]] FormatCtxT format_ctx =
+      test_format_context_create<OutIt, CharT>(out, std::make_format_args<FormatCtxT>(arg));
 
   { // parse not called
     [[maybe_unused]] const std::formatter<decltype(arg), CharT> formatter;
diff --git a/libcxx/test/std/utilities/format/format.range/format.range.fmtset/format.pass.cpp b/libcxx/test/std/utilities/format/format.range/format.range.fmtset/format.pass.cpp
--- a/libcxx/test/std/utilities/format/format.range/format.range.fmtset/format.pass.cpp
+++ b/libcxx/test/std/utilities/format/format.range/format.range.fmtset/format.pass.cpp
@@ -77,8 +77,9 @@
   std::set<parse_call_validator> arg{parse_call_validator{}};
 
   String result;
-  OutIt out             = std::back_inserter(result);
-  FormatCtxT format_ctx = test_format_context_create<OutIt, CharT>(out, std::make_format_args<FormatCtxT>(arg));
+  OutIt out = std::back_inserter(result);
+  [[maybe_unused]] FormatCtxT format_ctx =
+      test_format_context_create<OutIt, CharT>(out, std::make_format_args<FormatCtxT>(arg));
 
   { // parse not called
     [[maybe_unused]] const std::formatter<decltype(arg), CharT> formatter;
diff --git a/libcxx/test/std/utilities/format/format.range/format.range.formatter/format.pass.cpp b/libcxx/test/std/utilities/format/format.range/format.range.formatter/format.pass.cpp
--- a/libcxx/test/std/utilities/format/format.range/format.range.formatter/format.pass.cpp
+++ b/libcxx/test/std/utilities/format/format.range/format.range.formatter/format.pass.cpp
@@ -78,8 +78,9 @@
   std::vector<parse_call_validator> arg{1};
 
   String result;
-  OutIt out             = std::back_inserter(result);
-  FormatCtxT format_ctx = test_format_context_create<OutIt, CharT>(out, std::make_format_args<FormatCtxT>(arg));
+  OutIt out = std::back_inserter(result);
+  [[maybe_unused]] FormatCtxT format_ctx =
+      test_format_context_create<OutIt, CharT>(out, std::make_format_args<FormatCtxT>(arg));
 
   { // parse not called
     [[maybe_unused]] const std::range_formatter<parse_call_validator, CharT> formatter;
diff --git a/libcxx/test/std/utilities/format/format.tuple/format.pass.cpp b/libcxx/test/std/utilities/format/format.tuple/format.pass.cpp
--- a/libcxx/test/std/utilities/format/format.tuple/format.pass.cpp
+++ b/libcxx/test/std/utilities/format/format.tuple/format.pass.cpp
@@ -78,8 +78,9 @@
   std::pair<parse_call_validator, parse_call_validator> arg;
 
   String result;
-  OutIt out             = std::back_inserter(result);
-  FormatCtxT format_ctx = test_format_context_create<OutIt, CharT>(out, std::make_format_args<FormatCtxT>(arg));
+  OutIt out = std::back_inserter(result);
+  [[maybe_unused]] FormatCtxT format_ctx =
+      test_format_context_create<OutIt, CharT>(out, std::make_format_args<FormatCtxT>(arg));
 
   { // parse not called
     [[maybe_unused]] const std::formatter<decltype(arg), CharT> formatter;