Found the following significant warnings:
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/common/v1/common.pb.h:248:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/common/v1/common.pb.h:302:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/common/v1/common.pb.h:320:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/common/v1/common.pb.h:341:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/common/v1/common.pb.h:827:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/common/v1/common.pb.h:842:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/common/v1/common.pb.h:1018:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/common/v1/common.pb.h:1032:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/common/v1/common.pb.h:1246:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/common/v1/common.pb.h:1260:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/trace/v1/trace.pb.h:491:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/trace/v1/trace.pb.h:506:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/trace/v1/trace.pb.h:682:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/trace/v1/trace.pb.h:697:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/trace/v1/trace.pb.h:874:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/trace/v1/trace.pb.h:1069:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/trace/v1/trace.pb.h:1083:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/trace/v1/trace.pb.h:1097:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/trace/v1/trace.pb.h:1381:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/trace/v1/trace.pb.h:1395:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/trace/v1/trace.pb.h:1409:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/trace/v1/trace.pb.h:1423:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/trace/v1/trace.pb.h:1437:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/trace/v1/trace.pb.h:1452:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/trace/v1/trace.pb.h:1717:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/logs/v1/logs.pb.h:470:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/logs/v1/logs.pb.h:485:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/logs/v1/logs.pb.h:661:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/logs/v1/logs.pb.h:676:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/logs/v1/logs.pb.h:860:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/logs/v1/logs.pb.h:874:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/logs/v1/logs.pb.h:888:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/logs/v1/logs.pb.h:902:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/logs/v1/logs.pb.h:917:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/metrics/v1/metrics.pb.h:496:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/metrics/v1/metrics.pb.h:511:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/metrics/v1/metrics.pb.h:687:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/metrics/v1/metrics.pb.h:702:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/metrics/v1/metrics.pb.h:893:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/metrics/v1/metrics.pb.h:907:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/metrics/v1/metrics.pb.h:921:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/metrics/v1/metrics.pb.h:936:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/metrics/v1/metrics.pb.h:954:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/metrics/v1/metrics.pb.h:972:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/metrics/v1/metrics.pb.h:990:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/metrics/v1/metrics.pb.h:1008:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/metrics/v1/metrics.pb.h:2798:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/metrics/v1/metrics.pb.h:2816:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/metrics/v1/metrics.pb.h:3504:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/metrics/v1/metrics.pb.h:3518:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/collector/trace/v1/trace_service.pb.h:375:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/collector/trace/v1/trace_service.pb.h:530:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/collector/logs/v1/logs_service.pb.h:375:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/collector/logs/v1/logs_service.pb.h:530:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/collector/metrics/v1/metrics_service.pb.h:375:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/collector/metrics/v1/metrics_service.pb.h:530:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
  /data/gannet/ripley/R/packages/tests-clang/otelsdk/src/cpp/build/generated/third_party/opentelemetry-proto/opentelemetry/proto/collector/common/v1/status.pb.h:222:3: warning: use of the 'nodiscard' attribute is a C++17 extension [-Wc++17-attribute-extensions]
See ‘/data/gannet/ripley/R/packages/tests-clang/otelsdk.Rcheck/00install.out’ for details.
* used C compiler: ‘clang version 21.1.0’
* used C++ compiler: ‘clang version 21.1.0’