Apparently the MSVC builds also specify trustInfo in manifest.

It appears they just set the default values, so try that out.

src/conio/ciolib.manifest

@@ -7,4 +7,11 @@
       <gdiScaling xmlns="http://schemas.microsoft.com/SMI/2017/WindowsSettings">false</gdiScaling>
     </asmv3:windowsSettings>
   </asmv3:application>
+  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
+    <security>
+      <requestedPrivileges xmlns="urn:schemas-microsoft-com:asm.v3">
+        <requestedExecutionLevel level="asInvoker" uiAccess="false" />
+      </requestedPrivileges>
+    </security>
+  </trustInfo>
 </assembly>