[Bug] Panic on trying to unwrap a `None` value (only relevant for crate version)

[alexmozaidze]

The following lisp code makes interpreter panic

(defun lol () (+ 1 2))
(lol)

This doesn't panic

(defun lol (a) (+ a 2))
(lol 1)

This is only present on crate version of this package, Github version is fine I had to add the following lines in Cargo.toml in order to get latest version

[replace]
"rust_lisp:0.2.0" = { git = "https://github.com/brundonsmith/rust_lisp" }

Can you update the crate version?

[brundonsmith]

Yes, I'll update the crate

[brundonsmith]

Done