Nicolas Graves schreef op wo 16-02-2022 om 02:24 [+0100]:
> +          (add-after 'configure 'relax-requirements
> +            (lambda _
> +              (substitute*
> +                  "guix-vendor/rust-rsa-0.5.0.tar.gz/Cargo.toml"
> +                (("version = \">=1, <1.5\"") "version = \"^1\""))
> +              )))

Wouldn't this be a problem of the 'rust-rsa' package?  I would move
this version relaxing to the 'rust-rsa' package, such that all
dependents of rust-rsa can benefit.

Greetings,
Maxime.