fix: catch exceptions in print-uncaught-messages destructor

src/libOpenImageIO/imagebuf.cpp

@@ -575,10 +575,15 @@ ImageBufImpl::~ImageBufImpl()
     // how to properly check for errors.
     if (!m_err.empty() /* Note: safe becausethis is the dtr */
         && OIIO::pvt::imagebuf_print_uncaught_errors) {
-        OIIO::print(
-            "An ImageBuf was destroyed with a pending error message that was never\n"
-            "retrieved via ImageBuf::geterror(). This was the error message:\n{}\n",
-            m_err);
+        try {
+            OIIO::print(
+                "An ImageBuf was destroyed with a pending error message that was never\n"
+                "retrieved via ImageBuf::geterror(). This was the error message:\n{}\n",
+                m_err);
+        } catch (...) {
+            // Swallow any exceptions (e.g., from fmt's fwrite_fully)
+            // to avoid std::terminate from throwing in a destructor.
+        }
     }
 }
 

src/libutil/strutil.cpp

@@ -201,10 +201,15 @@ struct ErrorHolder {
     ~ErrorHolder()
     {
         if (!error_msg.empty() && OIIO::pvt::oiio_print_uncaught_errors) {
-            OIIO::print(
-                "OpenImageIO exited with a pending error message that was never\n"
-                "retrieved via OIIO::geterror(). This was the error message:\n{}\n",
-                error_msg);
+            try {
+                OIIO::print(
+                    "OpenImageIO exited with a pending error message that was never\n"
+                    "retrieved via OIIO::geterror(). This was the error message:\n{}\n",
+                    error_msg);
+            } catch (...) {
+                // Swallow any exceptions (e.g., from fmt's fwrite_fully)
+                // to avoid std::terminate from throwing in a destructor.
+            }
         }
     }
 };