break on compress failure

src/compress_measurements.cpp

@@ -44,10 +44,13 @@ int main(int argc, char *argv[])
 
                 if (std::fclose(outfile))
                 {
-                    std::cout << " FAILED!" << std::endl
-                              << std::flush;
                     fprintf(stderr, "Write error: %s\n", std::strerror(errno));
                     success = false;
+                }
+
+                if (!success) {
+                    std::cout << " FAILED!" << std::endl
+                              << std::flush;
                     break;
                 }