rust - Renaming a crate with a hyphen doesn't compile anymore -

this no longer compiles:

extern crate "my-crate" my_crate1; 

what's new syntax? did not find searching.

dashes in extern crate names can replaced underscores. example should be

extern crate my_crate my_crate1; 

or if want underscored name, using following work

extern crate my_crate;