我有一个箱子foo_sys.在Rust 2015中我使用的extern crate foo_sys as foo是方便,但在Rust 2018 extern crate中不再需要了,我不想仅将其用于别名.下降时extern crate,我明白了
foo_sys
extern crate foo_sys as foo
extern crate
错误[E0463]:无法找到包装箱foo
foo
rust rust-cargo rust-2018
rust ×1
rust-2018 ×1
rust-cargo ×1