error[E0603]: crate import `core` is private --> $DIR/pub-reexport-priv-extern-crate.rs:10:15 | LL | use foo1::core; | ^^^^ private crate import | note: the crate import `core` is defined here --> $DIR/pub-reexport-priv-extern-crate.rs:6:5 | LL | extern crate core; | ^^^^^^^^^^^^^^^^^^ error[E0603]: crate import `core` is private --> $DIR/pub-reexport-priv-extern-crate.rs:17:24 | LL | pub use foo2::bar::core; | ^^^^ private crate import | note: the crate import `core` is defined here --> $DIR/pub-reexport-priv-extern-crate.rs:12:9 | LL | extern crate core; | ^^^^^^^^^^^^^^^^^^ error: extern crate `core` is private, and cannot be re-exported (error E0365), consider declaring with `pub` --> $DIR/pub-reexport-priv-extern-crate.rs:2:9 | LL | pub use core as reexported_core; | ^^^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #34537 = note: `#[deny(pub_use_of_private_extern_crate)]` on by default error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0603`.