purl-next: Collect PURLs for Rust ecosystem

[pombredanne]

Create decentralized, distributed PURL metadata collection using CI/CD jobs - one ecosystem

[pombredanne]

@ziadhany please confer with @AyanSinhaMahapatra and @JonoYang to get started

[pombredanne]

Some inputs for what needs to be done is in these two PRs:

• Add support to mine maven Package-URLs #660 #678
• Add support to mine pypi Package-URLs #662 #677

[pombredanne]

To start, you will need to get the list of all known crates. Likely though https://crates.io/api/v1/ ? or something else?
We do not have this yet in any of:

• https://github.com/aboutcode-org/purldb/blob/main/minecode/collectors/cargo.py

• purldb/packagedb/package_managers.py

  Line 231 in dba43e6

  class CratesVersionAPI(VersionAPI):

• or

  purldb/minecode/miners/cargo.py

  Line 16 in dba43e6

  Yield ScannedPackage built from crates.io.

Actually a good starting point is that:

• Mine Rust crates #545