deny can be overriden with allow, unlike forbid. This allows us to allow some warnings on a case-by-case basis which is especially useful in macros. Without this, some macros from other crates caused compilation errors on nightly, however it's possible it would eventually affect stable as well.
denycan be overriden withallow, unlikeforbid. This allows us toallowsome warnings on a case-by-case basis which is especially useful in macros. Without this, some macros from other crates caused compilation errors on nightly, however it's possible it would eventually affect stable as well.