stderr:
Swift version 4.2-dev (LLVM c30b3a99bf, Clang 1bc45fa980, Swift e96fcee6cd) Target: x86_64-unknown-linux-gnu /usr/bin/lldb --repl=-disable-objc-interop error: failed to launch REPL process: process launch failed: 'A' packet returned an error: 8
(edited)