How to use my library from different project in rust

Question

I have 2 projects: First:

my_project
|__scr
|  |__main.rs
|__Cargo.toml
|__Cargo.lock

Second (the library (was created by cargo new my_project_library --lib) I plan to use it for many projects):

my_project_library
|__scr
|  |__lib.rs
|__Cargo.toml
|__Cargo.lock

How to use it in project (it haven´t be publish yet )?
Or is it wrong and I must create library with some diferent command?