roachtest: output error and bump vmodule on lease preferences test

The `lease-preferences` roachtest did not log the state of preference
conformance on timeout. This commit updates the error check, hit on
timeout, to show the result.

Also bump the vmodule settings to show lease acquisitions and lease
preference errors.

Epic: none
Informs: cockroachdb#107862

Release note: None

Author: kvoli

pkg/cmd/roachtest/tests/lease_preferences.go

@@ -188,7 +188,8 @@ func runLeasePreferences(
 				// dc=2: n3 n4
 				// ...
 				// dc=N: n2N-1 n2N
-				fmt.Sprintf("--locality=region=fake-region,zone=fake-zone,dc=%d", (node-1)/2+1))
+				fmt.Sprintf("--locality=region=fake-region,zone=fake-zone,dc=%d", (node-1)/2+1),
+				"--vmodule=replica_proposal=2,replicate_queue=3,replicate=3")
 			c.Start(ctx, t.L(), opts, settings, c.Node(node))
 
 		}
@@ -223,7 +224,7 @@ func runLeasePreferences(
 	checkLeasePreferenceConformance := func(ctx context.Context) {
 		result, err := waitForLeasePreferences(
 			ctx, t, c, spec.checkNodes, spec.waitForLessPreferred, stableDuration)
-		require.NoError(t, err)
+		require.NoError(t, err, result)
 		require.Truef(t, !result.violating(), "violating lease preferences %s", result)
 		if spec.waitForLessPreferred {
 			require.Truef(t, !result.lessPreferred(), "less preferred preferences %s", result)