Result already is “stack” based, or sized. It also already exists in core: https://doc.rust-lang.org/core/result/index.html https://doc.rust-lang.org/core/resul

Result already is “stack” based, or sized. It also already exists in core: https://doc.rust-lang.org/core/result/index.html https://doc.rust-lang.org/core/result/index.html The Error type currently isn’t in core, but for other reasons, that just got resolved: https://twitter.com/bascule/status/1452029363197784071?s=21 https://twitter.com/bascule/status/1452029363197784071?s=21