Address some of Crater's errors

rust-lang / rustwide

Execute your code on the Rust ecosystem.

Apache License 2.0

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Closed pietroalbini closed 3 years ago

pietroalbini commented 3 years ago

This PR removes two of the causes that could result a crate being marked as "error" in Crater:

Rustwide removed path dependencies from Cargo.toml, breaking git repositories relying on them.
Rustwide didn't return a structured error when dependencies are missing.