Error code E0557
A feature attribute named a feature that has been removed.
Erroneous code example:
#![allow(unused)] #![feature(managed_boxes)] // error: feature has been removed fn main() { }
Delete the offending feature attribute.
A feature attribute named a feature that has been removed.
Erroneous code example:
#![allow(unused)] #![feature(managed_boxes)] // error: feature has been removed fn main() { }
Delete the offending feature attribute.