Found the following significant warnings:
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/bitset.hpp:23:5: warning: anonymous structs are a GNU extension [-Wgnu-anonymous-struct]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/bitset.hpp:23:5: warning: anonymous types declared in an anonymous union are an extension [-Wnested-anon-types]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/StrUtils.h:326:20: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/StrUtils.h:326:31: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Combiner.cpp:228:41: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Combiner.cpp:441:15: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Combiner.cpp:513:42: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Combiner.cpp:565:93: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Combiner.cpp:734:11: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Combiner.cpp:909:4: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Combiner.cpp:525:56: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Combiner.cpp:529:57: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Combiner.cpp:533:57: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Combiner.cpp:420:15: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Combiner.cpp:421:15: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Combiner.cpp:422:20: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Combiner.cpp:423:18: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Combiner.cpp:424:24: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Kiwi.cpp:301:49: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Kiwi.cpp:706:78: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Kiwi.cpp:708:16: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Kiwi.cpp:327:28: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/KiwiBuilder.cpp:154:16: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/KiwiBuilder.cpp:190:16: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/KiwiBuilder.cpp:200:17: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/KiwiBuilder.cpp:204:32: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/KiwiBuilder.cpp:275:26: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/KiwiBuilder.cpp:282:22: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/KiwiBuilder.cpp:1026:23: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/KTrie.cpp:18:21: warning: unqualified call to 'std::forward' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Knlm.hpp:1170:86: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Knlm.hpp:1174:87: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Knlm.hpp:1178:87: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/Knlm.hpp:1182:87: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/WordDetector.cpp:222:18: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/WordDetector.cpp:280:24: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/WordDetector.cpp:649:20: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/third_party/mimalloc/include/mimalloc-internal.h:56:26: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/third_party/mimalloc/src/os.c:93:24: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/third_party/mimalloc/src/os.c:98:30: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/third_party/mimalloc/src/os.c:217:17: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/third_party/mimalloc/src/region.c:43:31: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/third_party/mimalloc/src/alloc.c:750:26: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/third_party/mimalloc/src/alloc.c:810:34: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/third_party/mimalloc/src/alloc.c:813:61: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/third_party/mimalloc/src/alloc.c:816:44: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/third_party/mimalloc/src/options.c:25:33: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/third_party/mimalloc/src/options.c:245:33: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/capi/kiwi_c.cpp:31:54: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/capi/kiwi_c.cpp:226:23: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/capi/kiwi_c.cpp:255:23: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/capi/kiwi_c.cpp:285:23: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/capi/kiwi_c.cpp:314:23: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/capi/kiwi_c.cpp:487:32: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/capi/kiwi_c.cpp:515:32: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/capi/kiwi_c.cpp:536:53: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/capi/kiwi_c.cpp:537:23: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/capi/kiwi_c.cpp:555:53: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
  /data/gannet/ripley/R/packages/tests-clang/elbird/Kiwi/src/capi/kiwi_c.cpp:556:23: warning: unqualified call to 'std::move' [-Wunqualified-std-cast-call]
See ‘/data/gannet/ripley/R/packages/tests-clang/elbird.Rcheck/00install.out’ for details.
* used C++ compiler: ‘clang version 15.0.7’