[mojuba]

You have a stack dump, which means you will get all the information if you symbolicate your crash report. Xcode can do it for you automatically, but some manual methods also exist.

[robotresearcher]

Indeed the error report being complained about explains this and tells you how to fix it.

Maybe the friendly default would be to have the symbolicated reports on, but perhaps this has performance impact so it’s off.

[kergonath]

> Maybe the friendly default would be to have the symbolicated reports on

As a comment just below says, the solution is quite simple:

> ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it

[alain_gilbert]

Here is the output with the environment variable set.

https://pastebin.com/8M9Dbrgj

This doesn't provide anything useful either.

[brailsafe]

Seems like there's an architecture error or something, the last line indicates you might have an error with the flag:

> zsh: illegal hardware instruction LLVM_SYMBOLIZER_PATH=/usr/local/opt/llvm/bin/llvm-symbolizer swift main.swift

[alain_gilbert]

that's not related to the symbolizer thing. It seems to just be part of the "index out of range" crash. I get the same thing without using the symbolizer.

    zsh: illegal hardware instruction  swift main.swift

[robotresearcher]

Ouch, and yuk. I stand corrected!