diff --git a/src/test/app/LoanBroker_test.cpp b/src/test/app/LoanBroker_test.cpp
index 92949256fd..0edb955b90 100644
--- a/src/test/app/LoanBroker_test.cpp
+++ b/src/test/app/LoanBroker_test.cpp
@@ -1,5 +1,6 @@
 
 #include <test/jtx/Account.h>
+#include <test/jtx/CaptureLogs.h>
 #include <test/jtx/Env.h>
 #include <test/jtx/JTx.h>
 #include <test/jtx/TestHelpers.h>
@@ -52,6 +53,7 @@
 #include <array>
 #include <cstdint>
 #include <functional>
+#include <memory>
 #include <optional>
 #include <string_view>
 #include <tuple>
@@ -1708,7 +1710,8 @@ class LoanBroker_test : public beast::unit_test::Suite
         Account const alice("alice");
 
         auto const withFix = features[fixCleanup3_2_0];
-        Env env(*this, features);
+        std::string logs;
+        Env env(*this, features, std::make_unique<CaptureLogs>(&logs));
         env.fund(XRP(100'000), issuer, alice);
         env.close();
 
diff --git a/src/test/app/Vault_test.cpp b/src/test/app/Vault_test.cpp
index bf707afae9..2c83ad91ec 100644
--- a/src/test/app/Vault_test.cpp
+++ b/src/test/app/Vault_test.cpp
@@ -1,6 +1,7 @@
 #include <test/jtx/AMM.h>
 #include <test/jtx/AMMTest.h>
 #include <test/jtx/Account.h>
+#include <test/jtx/CaptureLogs.h>
 #include <test/jtx/Env.h>
 #include <test/jtx/TestHelpers.h>
 #include <test/jtx/amount.h>
@@ -60,6 +61,7 @@
 #include <cstdint>
 #include <functional>
 #include <limits>
+#include <memory>
 #include <optional>
 #include <string>
 #include <tuple>
@@ -6630,7 +6632,8 @@ class Vault_test : public beast::unit_test::Suite
                         "fixed-asset amount with impaired loan"} +
             (withFix ? " (fixCleanup3_2_0)" : " (pre-fix)"));
 
-        Env env(*this, features);
+        std::string logs;
+        Env env(*this, features, std::make_unique<test::CaptureLogs>(&logs));
         auto const f = setupStuckDepositor(env);
         if (!f.vaultKeylet || !f.asset || f.sharesLender == 0)
         {
@@ -6748,7 +6751,8 @@ class Vault_test : public beast::unit_test::Suite
                         "burn is rejected while loss outstanding"} +
             (withFix ? " (fixCleanup3_2_0)" : " (pre-fix)"));
 
-        Env env(*this, features);
+        std::string logs;
+        Env env(*this, features, std::make_unique<test::CaptureLogs>(&logs));
         auto const f = setupStuckDepositor(env);
         if (!f.vaultKeylet || f.sharesLender == 0)
         {
@@ -7074,7 +7078,8 @@ class Vault_test : public beast::unit_test::Suite
         using namespace test::jtx;
 
         auto runScenario = [this](FeatureBitset features, TER expected) {
-            Env env(*this, features);
+            std::string logs;
+            Env env(*this, features, std::make_unique<test::CaptureLogs>(&logs));
 
             Account const issuer{"issuer"};
             Account const alice{"alice"};
@@ -7150,7 +7155,8 @@ class Vault_test : public beast::unit_test::Suite
         using namespace test::jtx;
 
         auto runScenario = [this](FeatureBitset features, TER expected) {
-            Env env(*this, features);
+            std::string logs;
+            Env env(*this, features, std::make_unique<test::CaptureLogs>(&logs));
 
             Account const issuer{"issuer"};
             Account const alice{"alice"};
@@ -7226,7 +7232,8 @@ class Vault_test : public beast::unit_test::Suite
         enum class DestKind : bool { ThirdParty = false, Self = true };
 
         auto runScenario = [this](FeatureBitset features, DestKind destKind, TER expected) {
-            Env env(*this, features);
+            std::string logs;
+            Env env(*this, features, std::make_unique<test::CaptureLogs>(&logs));
 
             Account const issuer{"issuer"};
             Account const alice{"alice"};
@@ -7331,7 +7338,8 @@ class Vault_test : public beast::unit_test::Suite
         using namespace test::jtx;
 
         auto runScenario = [this](FeatureBitset features, TER expected) {
-            Env env(*this, features);
+            std::string logs;
+            Env env(*this, features, std::make_unique<test::CaptureLogs>(&logs));
 
             Account const issuer{"issuer"};
             Account const alice{"alice"};
@@ -7414,7 +7422,8 @@ class Vault_test : public beast::unit_test::Suite
     {
         using namespace test::jtx;
         auto runScenario = [this](FeatureBitset features, TER expected) {
-            Env env(*this, features);
+            std::string logs;
+            Env env(*this, features, std::make_unique<test::CaptureLogs>(&logs));
 
             Account const issuer{"issuer"};
             Account const alice{"alice"};
@@ -7489,7 +7498,8 @@ class Vault_test : public beast::unit_test::Suite
         using namespace test::jtx;
 
         auto runScenario = [this](FeatureBitset features, TER expected) {
-            Env env(*this, features);
+            std::string logs;
+            Env env(*this, features, std::make_unique<test::CaptureLogs>(&logs));
 
             Account const issuer{"issuer"};
             Account const owner{"owner"};