cargo metadata fails to verify the checksum of syn-test-suite v0.0.0

[matthiaskrgr]

If i download syn 1.0.60 from crates.io https://crates.io/api/v1/crates/syn/1.0.60/download , extract it and run cargo metadata on the crate sources, I get an error:

  Downloaded syn-test-suite v0.0.0
error: failed to verify the checksum of `syn-test-suite v0.0.0`

It seems that I don't have the sources of the crate in my cargo cache (in ~/.cargo/registry/src/github.com-1ecc6299db9ec823/).
There is only syn-test-suite-0.0.0+test but not syn-test-suite-0.0.0.

Maybe something went wrong while packaging?

[dtolnay]

Closing as this seems like a Cargo bug, not anything to do with syn specifically. If somebody does look into this and there is an easy workaround that syn would be able to do, I would welcome a PR.

[aidanhs]

For reference, this is to do with rust-lang/cargo#7180