rust-lang/rfcs — pull request #115 by brson (2014-06-11 22:45:12+00:00)
Title: RFC for removing integer inference fallback

Rust infers primitive integer types, but when it can't find a solution it currently defaults to `int`. This is often seen as a potential subtle footgun. This RFC describes how to remove the feature, per https://github.com/mozilla/rust/issues/6023.