bug#25281: rust importer duplicates input

[Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de>]

David Craven <david@craven.ch> writes:

> Looking at the Cargo.toml file we see this:
>
> [target."cfg(unix)".dependencies]
> libc = "0.2.14"
> # Compat with older Cargo versions temporarily
> [target.x86_64-unknown-linux-gnu.dependencies]
> libc = "0.2.14"
> [target.i686-unknown-linux-gnu.dependencies]
> libc = "0.2.14"
> [target.x86_64-apple-darwin.dependencies]
> libc = "0.2.14"
> [target.i686-apple-darwin.dependencies]
> libc = "0.2.14"
>
> I started reimplementing cargos dependency resolution algorithm, but
> think now that it's better to use a Cargo.lock file when one is
> provided.
>
> When there isn't a cargo lock file it's a library in the sense that it
> is a collection of source code that can be reused in a cargo project
> that has a Cargo.lock file.
>
> I don't think that this is a issue that needs fixing.

Could the importer be changed to either ignore targets that don’t match
the current architecture or to uniquify the list of inputs?

~~ Ricardo