`elliptic-curve`: `v0.14.0-rc.17` does not build when used as a dependency.

[carloskiki]

Using

elliptic-curve = "0.14.0-rc.17"

results in compilation error from the incompatibility of subtle::Choice and crypto_bigint::Choice.

I suspect that is because crypto-bigint = "0.7.0-rc.11" was released recently. This would be fixed by releasing elliptic-curve = "0.14.0-rc.18" as the crate currently builds on master.

For those facing this issue, a solution is to pin crypto-bigint = "=0.7.0-rc.10" in Cargo.toml.

[tarcieri]

I'm working on doing this update right now, and unfortunately running into things completely unrelated to my work causing breakages: RustCrypto/crypto-bigint#1060

[tarcieri]

If you update to the latest version of all crates, this should be resolved