translate-c tests: print clang compile errors on nonzero exit code
translate-c tests: print clang compile errors on nonzero exit code

raulgrell/zig,raulgrell/zig,raulgrell/zig,andrewrk/zig,raulgrell/zig,zig-lang/zig,raulgrell/zig,zig-lang/zig,zig-lang/zig,andrewrk/zig