Remove `failure` and use `std::error::Error` via `thiserror`

dalek-cryptography / bulletproofs

A pure-Rust implementation of Bulletproofs using Ristretto.

MIT License

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Remove `failure` and use `std::error::Error` via `thiserror` #306

Closed hdevalence closed 4 years ago

hdevalence commented 4 years ago

Since we need a 2.0.0 release due to #303, we could also use this opportunity to migrate away from failure (now that std::error::Error has been improved).