/Applications/Xcode_11.3.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang: /Applications/Xcode_11.3.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang: cannot execute binary file
make: *** [/Volumes/BuildData/tmpfs/src/github/grpc/workspace_csharp_ext_macos_ios/objs/ios_arm64/third_party/cares/cares/ares_parse_mx_reply.o] Error 126
make: *** Waiting for unfinished jobs....
[C]       Compiling third_party/cares/cares/ares_parse_naptr_reply.c

2021-05-05 11:55:57,321 FAILED: build_artifact.csharp_ext_macos_ios [ret=2, pid=14214, time=596.3sec]