This PR makes OpenError implement std::error::Error, which I think is expected of most error types. It will help make opener easier to use in projects that don't use the failure crate.
Since failure was only used for setting the source of the OpenError, this is a pretty straightforward change.
This should not be a breaking change since failure already blanket implements the Fail trait for everything implementing std::error::Error.
This change may increase the minimum Rust version that opener requires, since Error::source was only stabilized in Rust 1.30. If this is a problem, I can change the PR to use the (now deprecated) Error::cause API which is functionally very similar.
This removes the explicit dependencies on failure and failure_derive, which should improve compilation times for consumers of opener that aren't otherwise using those libraries.
Closes #2.
This PR makes
OpenErrorimplementstd::error::Error, which I think is expected of most error types. It will help make opener easier to use in projects that don't use the failure crate.Since failure was only used for setting the source of the
OpenError, this is a pretty straightforward change.This should not be a breaking change since failure already blanket implements the
Failtrait for everything implementingstd::error::Error.This change may increase the minimum Rust version that opener requires, since
Error::sourcewas only stabilized in Rust 1.30. If this is a problem, I can change the PR to use the (now deprecated)Error::causeAPI which is functionally very similar.This removes the explicit dependencies on
failureandfailure_derive, which should improve compilation times for consumers ofopenerthat aren't otherwise using those libraries.